# Email on Acid vs Validity Engage Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Litmus excels in providing a comprehensive email testing experience, allowing users to preview how campaigns will appear across various devices and inboxes. This feature significantly reduces guesswork, making it a vital tool in many email marketing workflows.
- **Users say** that Email on Acid is particularly valued for its straightforward usability and effective email rendering tests. Reviewers appreciate the ability to view actual rendered versions of emails in common inbox providers, which is crucial for troubleshooting and ensuring a flawless user experience.
- **According to verified reviews** , Litmus offers enhanced collaboration features, such as the ability to share email content with non-Litmus users and highlight specific areas for edits. This functionality is praised for streamlining the review process and improving team communication.
- **Reviewers mention** that while Email on Acid is recognized for its cost-effectiveness and essential features like spam testing, it currently has fewer recent reviews compared to Litmus, which may indicate a need for more user engagement or updates in its offerings.
- **Users highlight** that both platforms have similar ratings for ease of use, but Email on Acid stands out with a slightly higher score for ease of setup. This suggests that new users may find it easier to get started with Email on Acid, as noted by users who appreciate its intuitive onboarding process.
- **G2 reviewers indicate** that while Litmus has a larger market presence and a wealth of features, some users feel overwhelmed by its complexity. In contrast, Email on Acid is often described as a more straightforward tool, making it a good choice for those who prioritize simplicity in their email marketing efforts.



---
## Frequently Asked Questions

### What is the difference between Email on Acid vs Validity Engage?

Email on Acid and Validity Engage are both rated 4.5/5, but Email on Acid leads on Ease of Setup and Ease of Admin, while Validity Engage is noted for its broad feature set and reviewer-cited strengths in email management and analytics.

| [Email on Acid](https://www.g2.com/products/email-on-acid/reviews) | [Validity Engage](https://www.g2.com/products/validity-engage/reviews) |
| --- | --- |
| 4.5/5 (43 reviews) | 4.5/5 (989 reviews) |
| Mid-Market | Mid-Market |
| 9.5 | 8.6 |
| 8.9 | 8.7 |
| Streamlined email rendering and previews | Email management and analytics (43 and 23 all-time mentions) |



### How do the pricing models of Email on Acid and Validity Engage compare?

Email on Acid is considered the stronger value on price satisfaction, with a higher reviewer score for value compared to Validity Engage.

- **Email on Acid:** Reviewers highlight its affordability and reasonable cost, especially compared to competitors, with several noting it is more reasonably priced than alternatives.
- **Validity Engage:** Reviewers frequently cite high cost as a drawback, especially for small teams, and mention that some features are only available at higher price points.
- **Switching reasons:** Several reviewers mention switching to Email on Acid from higher-priced competitors due to better value and cost-effectiveness.



### What are the best alternatives to Email on Acid and Validity Engage?

The top 3 alternatives to Email on Acid and Validity Engage are Brevo Marketing Platform, Everest, and MailerLite.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Email on Acid](https://www.g2.com/products/email-on-acid/reviews) | 4.5/5 (43 reviews) | Mid-Market | Reviewers highlight affordability and reasonable cost | Streamlined email rendering and previews |
| [Validity Engage](https://www.g2.com/products/validity-engage/reviews) | 4.5/5 (989 reviews) | Mid-Market | Reviewers frequently cite high cost as a drawback | Email management and analytics (43 and 23 all-time mentions) |
| [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) | 4.5/5 (2621 reviews) | Small-Business | — | — |
| [Everest](https://www.g2.com/products/validity-inc-everest/reviews) | 0.0/5 (0 reviews) | — | — | — |
| [MailerLite](https://www.g2.com/products/mailerlite/reviews) | 4.6/5 (1113 reviews) | Small-Business | — | — |



### Which Email Testing features should I prioritize when comparing Email on Acid and Validity Engage?

Buyers should prioritize email rendering accuracy, analytics and reporting, deliverability tools, customization options, and ease of setup when comparing Email on Acid and Validity Engage.

- **Email rendering accuracy:** Email on Acid is frequently cited for its rendering and preview capabilities; Validity Engage is also noted for previews (29 all-time mentions).
- **Analytics and reporting:** Validity Engage has 23 all-time mentions for analytics, while Email on Acid is praised for providing actionable recommendations and tracking codes.
- **Deliverability tools:** Validity Engage offers features like Blacklist and Whitelist, Brand Reputation, and Placement, which are not listed for Email on Acid.
- **Customization options:** Email on Acid reviewers mention a desire for more custom test cases and project-level test profiles.
- **Ease of setup:** Email on Acid scores 9.5 for Ease of Setup, compared to 8.6 for Validity Engage.



### What are the pros and cons of Email on Acid vs Validity Engage?

Email on Acid's headline strength is streamlined email rendering and previews, while Validity Engage stands out for email management and analytics.

- **Email on Acid strengths:** Reviewers highlight its ease of use, fast setup, affordability, and comprehensive email rendering across devices and clients.
- **Email on Acid trade-offs:** Some reviewers note occasional inaccuracies in previews, slower load times for certain clients, and limited customization for test cases.
- **Validity Engage strengths:** Email management (43 all-time mentions), analytics (23 all-time mentions), and detailed reporting are frequently cited as strengths.
- **Validity Engage trade-offs:** Reviewers mention high cost, some features gated behind higher tiers, and occasional interface speed issues.



### Is Email on Acid or Validity Engage better for small businesses?

Email on Acid is better suited for small businesses, with reviewers highlighting its affordability and value for smaller teams.

- **Email on Acid:** Largest segment is Mid-Market, but recent reviews recommend it for small to medium-sized businesses due to its pricing and ease of use.
- **Validity Engage:** Largest segment is Mid-Market, and reviewers frequently cite high cost as a barrier for small businesses.



### Which Email Testing platform has better integrations?

Email on Acid and Validity Engage are at parity for integrations, as neither product has recent reviewer-cited integration data or all-time mention counts for specific third-party tools.

- **Email on Acid:** No recent reviewer-cited integrations or all-time mention counts available.
- **Validity Engage:** No recent reviewer-cited integrations or all-time mention counts available.



### How do Email on Acid and Validity Engage compare on customer support?

Email on Acid and Validity Engage are at near-parity on Quality of Support, with scores of 8.9 and 8.7 respectively, below the materiality threshold for a clear winner.

- **Email on Acid:** Reviewers describe support as generally responsive and helpful, though a few mention occasional delays in instant support.
- **Validity Engage:** Reviewers note support is knowledgeable and quick to reply, but some mention reliance on automated responses and less personalized assistance for lower-tier plans.



### Which is easier to implement, Email on Acid or Validity Engage?

Email on Acid leads Validity Engage on Ease of Setup by 0.9 points, with reviewers consistently describing a simpler and faster implementation experience.

- **Email on Acid:** Reviewers consistently rate setup as straightforward and fast, with multiple mentions of setup being as easy as logging into a social platform and a 9.5 Ease of Setup score.
- **Validity Engage:** Reviewers describe setup as generally smooth but note occasional complexity, with an 8.6 Ease of Setup score and some feedback about initial learning curves for advanced features.



### Which product has better Email?

Email on Acid and Validity Engage are both strong on Email, but Validity Engage has a higher all-time mention count for email management and related features.

- **Email on Acid:** Ease of Use score 9.1, Meets Requirements 9.1, reviewers highlight streamlined email rendering and previews.
- **Validity Engage:** 43 all-time mentions for Email Management, 43 for Email Marketing, 29 for Previews, and 22 for Email Testing, indicating broad reviewer recognition for email-related capabilities.



| | Email on Acid | Validity Engage | 
|---|---|---|
| **Star Rating** | 4.5 out of 5 | 4.4 out of 5 | 
| **Total Reviews** | 43 | 705 | 

---
## Top Pros & Cons

### Email on Acid

**Not enough data**

### Validity Engage

Pros:
- Email Management (38 reviews)
- Email Marketing (38 reviews)

Cons:
- Missing Features (9 reviews)
- Slow Performance (9 reviews)

---
## Ratings Comparison
| Rating | Email on Acid | Validity Engage | 
|---|---|---|
  | **Meets Requirements** | 9.1 (29 reviews) | 9.0 (557 reviews) | 
  | **Ease of Use** | 9.1 (29 reviews) | 8.9 (560 reviews) | 
  | **Ease of Setup** | 9.5 (10 reviews) | 8.5 (235 reviews) | 
  | **Ease of Admin** | 9.8 (11 reviews) | 8.7 (205 reviews) | 
  | **Quality of Support** | 8.9 (15 reviews) | 8.7 (470 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.2 (10 reviews) | 8.6 (198 reviews) | 
  | **Product Direction (% positive)** | 8.8 (30 reviews) | 8.4 (521 reviews) | 

---
## Pricing

### Email on Acid

#### Entry-Level Pricing

Plan: The Basics

Price: $73 per month*

Description: *Billed one time annually



Key Features:
- Unlimited Email Previews
- Partial Campaign Precheck
- Email Editor

[Browse all 4 editions](https://www.g2.com/products/email-on-acid/pricing)

#### Free Trial

Yes

### Validity Engage

#### Entry-Level Pricing

Plan: Litmus Enterprise

Price: Contact Us Per Year

Description: Power every stage of your email workflow.

Key Features:
- Unlimited users
- Unlimited Email Previews
- Unlimited Litmus Personalize Impressions

[Browse all 2 editions](https://www.g2.com/products/validity-engage/pricing)

#### Free Trial

No

---
## Features Comparison By Category

### Email Marketing

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | 8.3/10 | 292 |

#### Email Marketing

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Email and Mobile Preview** | Not enough data | 9.4 (260 reviews) ✓ Verified | 
| **Manage Email Lists** | Not enough data | Feature Not Available | 
| **High-Volume Sending** | Not enough data | Feature Not Available | 
| **Building and Personalizing Emails** | Not enough data | 8.8 (221 reviews) ✓ Verified | 
| **Sending Outbound Emails** | Not enough data | Feature Not Available | 
| **Manage Email Deliverability** | Not enough data | 8.7 (207 reviews) ✓ Verified | 
| **Automated Email Responses** | Not enough data | Feature Not Available | 
| **Multi-user Account** | Not enough data | 9.1 (188 reviews) ✓ Verified | 
| **Surveys** | Not enough data | Feature Not Available | 

#### Reporting & Analytics

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **A/B Testing** | Not enough data | Feature Not Available | 
| **Basic Reporting** | Not enough data | 8.9 (205 reviews) | 

#### Generative AI

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **AI Text Generation** | Not enough data | 6.4 (50 reviews) | 
| **AI Text Summarization** | Not enough data | Feature Not Available | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Email Marketing

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 

#### Integration

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Data Import & Export Tools** | Not enough data | Feature Not Available | 
| **Integration APIs** | Not enough data | 7.8 (107 reviews) | 
| **Breadth of Partner Applications** | Not enough data | 7.8 (112 reviews) | 
| **CRM Integration** | Not enough data | 7.8 (100 reviews) | 
| **Social Media Integration** | Not enough data | Feature Not Available | 
| **E-Commerce Integration** | Not enough data | Feature Not Available | 
| **Third-Party Integrations** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Personalization** | Not enough data | Not enough data | 
| **Autoresponders** | Not enough data | Not enough data | 
| **Customer Segmentation** | Not enough data | Not enough data | 
| **Newsletter Management** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **WYSIWYG Editor** | Not enough data | Not enough data | 
| **Engagement Tracking** | Not enough data | Not enough data | 
| **Preview Functionality** | Not enough data | Not enough data | 
| **Email Tracking** | Not enough data | Not enough data | 
| **Email Campaign Management** | Not enough data | Not enough data | 
| **Landing Pages/Web Forms** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Lead Capture** | Not enough data | Not enough data | 
| **Mobile Optimization** | Not enough data | Not enough data | 
| **Customer Journey Mapping** | Not enough data | Not enough data | 
| **ROI Tracking** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Click Tracking** | Not enough data | Not enough data | 
| **List Management** | Not enough data | Not enough data | 
| **GDPR Compliance** | Not enough data | Not enough data | 
| **Subscriber Management** | Not enough data | Not enough data | 
| **Email Sequences** | Not enough data | Not enough data | 
| **Campaign Scheduling** | Not enough data | Not enough data | 
| **Event Triggered Actions** | Not enough data | Not enough data | 
| **Multi-Language** | Not enough data | Not enough data | 
| **Template Management** | Not enough data | Not enough data | 
| **Customizable CTAs** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Dynamic Content** | Not enough data | Not enough data | 
| **CAN-SPAM Compliance** | Not enough data | Not enough data | 
| **Multi-Channel Marketing** | Not enough data | Not enough data | 
| **HTML Editor** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Drip Campaigns** | Not enough data | Not enough data | 
| **Campaign Analytics** | Not enough data | Not enough data | 
| **Product Recommendations** | Not enough data | Not enough data | 
| **Image Library** | Not enough data | Not enough data | 
| **Workflow Automation** | Not enough data | Not enough data | 

### Collaboration & Productivity

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **To-Do List** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Screen Sharing** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Brainstorming** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Real Time Editing** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Assignment Management** | Not enough data | Not enough data | 
| **Task Scheduling** | Not enough data | Not enough data | 
| **Project Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Task Progress Tracking** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 

### Email Security

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Phishing Protection** | Not enough data | Not enough data | 
| **Threat Response** | Not enough data | Not enough data | 
| **Domain Check** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **AI/Machine Learning** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Anomaly/Malware Detection** | Not enough data | Not enough data | 
| **SURLB/URIBL Filtering** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Scheduled/Automated Reports** | Not enough data | Not enough data | 
| **For MSPs** | Not enough data | Not enough data | 
| **Whitelisting/Blacklisting** | Not enough data | Not enough data | 
| **Fraud Detection** | Not enough data | Not enough data | 
| **Spam Blocker** | Not enough data | Not enough data | 
| **Spam Quarantine** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Data Leak Prevention** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Audit Trail** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Spam Analysis** | Not enough data | Not enough data | 
| **Policy Management** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Threat Protection** | Not enough data | Not enough data | 
| **Email Attachment Protection** | Not enough data | Not enough data | 
| **Email Filtering** | Not enough data | Not enough data | 
| **Two-Factor Authentication** | Not enough data | Not enough data | 

### DMARC

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Diagnostics

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Account Overview** | Not enough data | 9.3 (14 reviews) | 
| **DMARC Alignment** | Not enough data | 9.0 (14 reviews) | 
| **Analytics** | Not enough data | 9.4 (13 reviews) | 

#### Compliance

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Policy Configuration** | Not enough data | 9.2 (11 reviews) | 
| **Alerts** | Not enough data | 9.5 (13 reviews) | 
| **Inbound Emails** | Not enough data | 9.2 (11 reviews) | 
| **Outbound Emails** | Not enough data | 9.5 (11 reviews) | 

#### Protection

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Threat Identifications** | Not enough data | 9.2 (11 reviews) | 
| **Threat Interception** | Not enough data | 9.1 (11 reviews) | 
| **Threat Removal** | Not enough data | 8.8 (10 reviews) | 
| **Integrations** | Not enough data | 9.2 (10 reviews) | 

### Email Deliverability

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | 8.9/10 | 230 |

#### Diagnosis

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **IP Address ** | Not enough data | 8.7 (179 reviews) | 
| **Domains** | Not enough data | 8.8 (179 reviews) | 
| **Content ** | Not enough data | 9.1 (198 reviews) | 
| **Policy Compliance** | Not enough data | 9.1 (175 reviews) | 

#### Tracking

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Processing Time** | Feature Not Available | 8.7 (86 reviews) | 
| **Placement ** | Feature Not Available | 8.9 (88 reviews) | 
| **Open Rate** | Not enough data | 8.9 (182 reviews) | 
| **Time to Open** | Feature Not Available | 8.9 (176 reviews) | 
| **Alerts** | Not enough data | 8.8 (78 reviews) | 

#### Reporting

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Campaign Performance** | Not enough data | 8.9 (181 reviews) | 
| **Domain Reputation** | Not enough data | 9.0 (94 reviews) | 
| **Brand Reputation** | Feature Not Available | 8.8 (85 reviews) | 
| **Blacklist and Whitelist** | Feature Not Available | 8.9 (91 reviews) | 

#### Agentic AI - Email Deliverability

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

### Location-Based Marketing

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Administration

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Integration** | Not enough data | Feature Not Available | 
| **Geofencing** | Not enough data | Feature Not Available | 
| **Wi-Fi Marketing** | Not enough data | Feature Not Available | 
| **Beacons** | Not enough data | Feature Not Available | 
| **IP Geolocation** | Not enough data | Feature Not Available | 

#### Agentic AI - Location-Based Marketing Features

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 

#### Marketing

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Geolocation** | Not enough data | Feature Not Available | 
| **Campaign Automation** | Not enough data | Feature Not Available | 
| **Analytics** | Not enough data | Feature Not Available | 
| **Security Compliance** | Not enough data | Not enough data | 

### E-Commerce Personalization

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Visitor Behavior

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Monitoring** | Not enough data | Feature Not Available | 
| **Targeting** | Not enough data | Feature Not Available | 
| **Guided Selling** | Not enough data | Feature Not Available | 

#### Templates

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Library** | Not enough data | Feature Not Available | 
| **Customization** | Not enough data | Feature Not Available | 
| **Optimization** | Not enough data | Feature Not Available | 

#### Personalization

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Recommendation** | Not enough data | Feature Not Available | 
| **Content** | Not enough data | Feature Not Available | 
| **Cart Abandonment** | Not enough data | Feature Not Available | 
| **Search** | Not enough data | Feature Not Available | 
| **Personalization Engine** | Not enough data | Feature Not Available | 
| **Product Recommendations** | Not enough data | Feature Not Available | 
| **A/B Testing** | Not enough data | Feature Not Available | 
| **Personalized Messaging** | Not enough data | Feature Not Available | 

#### Multichannel

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Web** | Not enough data | Feature Not Available | 
| **Email** | Not enough data | Feature Not Available | 
| **Mobile** | Not enough data | Feature Not Available | 

#### Administration 

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Marketing Campaigns** | Not enough data | Feature Not Available | 
| **Reports & Analytics** | Not enough data | Feature Not Available | 
| **User Data** | Not enough data | Feature Not Available | 
| **Integrations** | Not enough data | Feature Not Available | 

#### Agentic AI - E-Commerce Personalization

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 

### Email Template Builder

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | 7.6/10 | 18 |

#### Templates

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Text and Themes** | Not enough data | 7.7 (17 reviews) | 
| **Stock Images** | Not enough data | Feature Not Available | 
| **Proofing** | Not enough data | 8.1 (15 reviews) | 
| **Mobile Responsive** | Not enough data | 9.0 (14 reviews) | 

#### Edit

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Pre-Made** | Not enough data | 6.4 (16 reviews) | 
| **Build** | Not enough data | 8.0 (17 reviews) | 
| **HTML** | Not enough data | Feature Not Available | 

#### Logistics

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Analytics** | Not enough data | 5.6 (13 reviews) | 
| **Issues** | Not enough data | 7.8 (15 reviews) | 
| **Integrations** | Not enough data | 6.4 (12 reviews) | 
| **Shareable Link** | Not enough data | 8.3 (11 reviews) | 

#### Generative AI

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | 

#### Agentic AI - Email Template Builder

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 

### Email Testing

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | 9.0/10 | 8 |
| **Validity Engage** | 8.8/10 | 282 |

#### Platform Basics

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Editing Platform** | 8.8 (7 reviews) | 8.9 (226 reviews) | 
| **Spam Filter Testing** | 9.0 (8 reviews) | 8.6 (226 reviews) | 
| **Deliverability Testing** | 9.2 (8 reviews) | 8.9 (225 reviews) | 
| **Design Testing** | 9.2 (8 reviews) | 9.3 (259 reviews) | 

#### Platform Data

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Performance** | 8.5 (8 reviews) | 8.8 (227 reviews) | 
| **Dashboard** | Feature Not Available | 8.7 (241 reviews) | 
| **Analytics** | 9.3 (7 reviews) | 8.7 (203 reviews) | 

#### Agentic AI - Email Testing

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 
| **Adaptive Learning** | Not enough data | Feature Not Available | 
| **Proactive Assistance** | Not enough data | Feature Not Available | 
| **Decision Making** | Not enough data | Feature Not Available | 

### Email Verification

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Generative AI

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text-to-Speech** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Email Verification

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Decision Making** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Email Management** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Fraud Detection** | Not enough data | Not enough data | 
| **Data Verification** | Not enough data | Not enough data | 
| **Lead Management** | Not enough data | Not enough data | 
| **Contact Database** | Not enough data | Not enough data | 
| **Spam Detection** | Not enough data | Not enough data | 
| **A/B Testing** | Not enough data | Not enough data | 
| **Email Distribution** | Not enough data | Not enough data | 
| **Disposable Email Detection** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Unsubscribe Database** | Not enough data | Not enough data | 
| **Syntax Check** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Spam Analysis** | Not enough data | Not enough data | 
| **Subscription Management** | Not enough data | Not enough data | 
| **Campaign Segmentation** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Duplicate Detection** | Not enough data | Not enough data | 
| **Email Templates** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Anti Spam** | Not enough data | Not enough data | 
| **Recipient Validation** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Delivery Tracking** | Not enough data | Not enough data | 
| **Email Marketing** | Not enough data | Not enough data | 
| **Email Alerts** | Not enough data | Not enough data | 
| **Bulk Email Verification** | Not enough data | Not enough data | 
| **Drip Campaigns** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Data Capture and Transfer** | Not enough data | Not enough data | 
| **Bounce Rate Analysis** | Not enough data | Not enough data | 
| **Catch-all Server Detection** | Not enough data | Not enough data | 
| **Customer Database** | Not enough data | Not enough data | 
| **Single Email Verification** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Bulk Send** | Not enough data | Not enough data | 
| **Spam Blocker** | Not enough data | Not enough data | 
| **Mailing List Management** | Not enough data | Not enough data | 
| **Email Tracking** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Domain Check** | Not enough data | Not enough data | 
| **Email Address Extraction** | Not enough data | Not enough data | 

### Phone Verification

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Platform Basics - Phone Verification

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Accuracy** | Not enough data | Not enough data | 
| **Call Screening** | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | 
| **Security Measures** | Not enough data | Not enough data | 
| **Reliable Delivery** | Not enough data | Not enough data | 
| **Customizable Workflows** | Not enough data | Not enough data | 

#### Additional Features - Phone Verification

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Integration Abilities** | Not enough data | Not enough data | 
| **Compliance with Regulations** | Not enough data | Not enough data | 
| **Reporting and Analytics** | Not enough data | Not enough data | 

#### Agentic AI - Phone Verification

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 

### Personalization

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Agentic AI - Personalization

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 
| **Adaptive Learning** | Not enough data | Feature Not Available | 
| **Natural Language Interaction** | Not enough data | Feature Not Available | 
| **Proactive Assistance** | Not enough data | Feature Not Available | 
| **Decision Making** | Not enough data | Feature Not Available | 
| **Third-Party Integrations** | Not enough data | Not enough data | 

#### AI Personalization - Personalization

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Predictive Recommendations** | Not enough data | Not enough data | 
| **Audience Segmentation** | Not enough data | Not enough data | 
| **Adaptive Content** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **AI Copilot** | Not enough data | Not enough data | 
| **Engagement Tracking** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Visual Analytics** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Behavior Tracking** | Not enough data | Not enough data | 
| **Website Personalization** | Not enough data | Not enough data | 
| **Recommendations** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Content Analytics** | Not enough data | Not enough data | 
| **Behavioral Targeting** | Not enough data | Not enough data | 
| **Account Based Marketing** | Not enough data | Not enough data | 
| **Website Analytics** | Not enough data | Not enough data | 
| **Customer Segmentation** | Not enough data | Not enough data | 
| **Customer Profiles** | Not enough data | Not enough data | 
| **Template Management** | Not enough data | Not enough data | 
| **Multi-Channel Marketing** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Abandoned Cart Saver** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Contextual Targeting** | Not enough data | Not enough data | 
| **Experience Management** | Not enough data | Not enough data | 
| **Campaign Management** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **WYSIWYG Editor** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Multi-Campaign** | Not enough data | Not enough data | 
| **Campaign Segmentation** | Not enough data | Not enough data | 
| **A/B Testing** | Not enough data | Not enough data | 
| **Customizable Forms** | Not enough data | Not enough data | 
| **Email Marketing** | Not enough data | Not enough data | 

### Email Anti-spam

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Agentic AI - Email Anti-spam Features

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Phishing Protection** | Not enough data | Not enough data | 
| **Data Recovery** | Not enough data | Not enough data | 
| **Archiving & Retention** | Not enough data | Not enough data | 
| **Backup and Recovery** | Not enough data | Not enough data | 
| **Policy Management** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Data Loss Prevention** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Data Storage Management** | Not enough data | Not enough data | 
| **Fraud Detection** | Not enough data | Not enough data | 
| **Email Routing** | Not enough data | Not enough data | 
| **Data Verification** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **Filtering** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **SURLB/URIBL Filtering** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **Data Synchronization** | Not enough data | Not enough data | 
| **Anti Virus** | Not enough data | Not enough data | 
| **Risk Assessment** | Not enough data | Not enough data | 
| **Greylisting** | Not enough data | Not enough data | 
| **Audit Trail** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Allow/Block List** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Active Directory Integration** | Not enough data | Not enough data | 
| **Compression** | Not enough data | Not enough data | 
| **Email Tracking** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Anti Spam** | Not enough data | Not enough data | 
| **Disaster Recovery** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Spam Blocker** | Not enough data | Not enough data | 
| **Microsoft Outlook Integration** | Not enough data | Not enough data | 
| **Spam Analysis** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Categorization/Grouping** | Not enough data | Not enough data | 
| **Event Tracking** | Not enough data | Not enough data | 
| **Inbox Management** | Not enough data | Not enough data | 
| **Spam Detection** | Not enough data | Not enough data | 
| **Authentication** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Spam Quarantine** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Data Retention Management** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 

### SAP Store

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | N/A | N/A |

#### Agentic AI - SAP Store

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Multi-step Planning** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 
| **Adaptive Learning** | Not enough data | Feature Not Available | 
| **Natural Language Interaction** | Not enough data | Feature Not Available | 
| **Proactive Assistance** | Not enough data | Feature Not Available | 
| **Decision Making** | Not enough data | Feature Not Available | 

### Email Tracking

| Product | Score | Reviews |
|---|---|---|
| **Email on Acid** | N/A | N/A |
| **Validity Engage** | 8.7/10 | 41 |

#### Agentic AI - Email Tracking

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Multi-step Planning** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 
| **Adaptive Learning** | Not enough data | Feature Not Available | 
| **Natural Language Interaction** | Not enough data | Feature Not Available | 
| **Proactive Assistance** | Not enough data | Feature Not Available | 
| **Decision Making** | Not enough data | Feature Not Available | 

#### Analytics

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Open Rates** | Not enough data | 8.5 (34 reviews) | 
| **Link Activity** | Not enough data | Feature Not Available | 
| **Attachment Activity** | Not enough data | Feature Not Available | 

#### Customizations

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Email Platform Integration** | Not enough data | Feature Not Available | 
| **Email Scheduling** | Not enough data | Feature Not Available | 
| **Real-Time Notifications** | Not enough data | Feature Not Available | 
| **Email Categorization** | Not enough data | Feature Not Available | 
| **Templates** | Not enough data | Feature Not Available | 
| **Third-Party Integrations** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **AI Text Generation** | Not enough data | 9.0 (5 reviews) | 
| **Generative AI** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Email on Acid | Validity Engage | 
|---|---|---|
| **Contact Management** | Not enough data | Not enough data | 
| **Email Marketing** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Drip Campaigns** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Team Management** | Not enough data | Not enough data | 
| **Click Tracking** | Not enough data | Not enough data | 
| **Subscription Management** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Location Tracking** | Not enough data | Not enough data | 
| **Customer Segmentation** | Not enough data | Not enough data | 
| **Geolocation** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Mailing List Management** | Not enough data | Not enough data | 
| **Campaign Management** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Audience Targeting** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Email Distribution** | Not enough data | Not enough data | 
| **Email Reminders** | Not enough data | Not enough data | 
| **Autoresponders** | Not enough data | Not enough data | 
| **Engagement Tracking** | Not enough data | Not enough data | 
| **Event Triggered Actions** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (2):** [Email Deliverability Tools](https://www.g2.com/categories/email-deliverability), [Email Testing Software](https://www.g2.com/categories/email-testing)


**Unique to Validity Engage (11):** [Email Tracking Software](https://www.g2.com/categories/email-tracking), [Email Template Builder Software](https://www.g2.com/categories/email-template-builder), [Personalization Software](https://www.g2.com/categories/personalization), [E-Commerce Personalization Software](https://www.g2.com/categories/e-commerce-personalization), [Location-Based Marketing Software](https://www.g2.com/categories/location-based-marketing), [Email Marketing Software](https://www.g2.com/categories/email-marketing), [DMARC Software](https://www.g2.com/categories/dmarc), [Email Anti-spam Software](https://www.g2.com/categories/email-anti-spam), [Email Verification Software](https://www.g2.com/categories/email-verification), [Phone Verification Software](https://www.g2.com/categories/phone-verification), [SAP Store Software](https://www.g2.com/categories/sap-store)


---
## Reviewer Demographics

### By Company Size

| Segment | Email on Acid | Validity Engage | 
|---|---|---|
| **Small-Business** | 40.5% | 32.6% | 
| **Mid-Market** | 47.6% | 41.2% | 
| **Enterprise** | 11.9% | 26.3% | 

### By Industry

#### Email on Acid

- **Marketing and Advertising:** 28.6%
- **Computer Software:** 16.7%
- **Information Technology and Services:** 9.5%
- **Internet:** 7.1%
- **Telecommunications:** 4.8%
- **Non-Profit Organization Management:** 4.8%
- **Higher Education:** 4.8%
- **Financial Services:** 4.8%
- **Security and Investigations:** 2.4%
- **Real Estate:** 2.4%
- **Other:** 14.3%

#### Validity Engage

- **Marketing and Advertising:** 19.4%
- **Information Technology and Services:** 8.8%
- **Computer Software:** 7.5%
- **Retail:** 6.0%
- **Financial Services:** 5.3%
- **Non-Profit Organization Management:** 3.4%
- **Hospital & Health Care:** 3.3%
- **Health, Wellness and Fitness:** 2.9%
- **Internet:** 2.7%
- **Insurance:** 2.0%
- **Other:** 38.7%

---
## Alternatives

### Alternatives to Email on Acid

- [Everest](https://www.g2.com/products/validity-inc-everest/reviews) — 0.0/5 stars (0 reviews)
- [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) — 4.5/5 stars (2743 reviews)
- [Constant Contact](https://www.g2.com/products/constant-contact/reviews) — 4.1/5 stars (7570 reviews)
- [Inbox Monster](https://www.g2.com/products/inbox-monster/reviews) — 4.9/5 stars (57 reviews)
- [Intuit Mailchimp Email Marketing](https://www.g2.com/products/intuit-mailchimp-email-marketing/reviews) — 4.3/5 stars (12989 reviews)
- [MailerLite](https://www.g2.com/products/mailerlite/reviews) — 4.6/5 stars (1113 reviews)
- [Emma](https://www.g2.com/products/emma/reviews) — 4.0/5 stars (560 reviews)
- [Campaign Monitor](https://www.g2.com/products/campaign-monitor/reviews) — 4.1/5 stars (732 reviews)
- [AWeber](https://www.g2.com/products/aweber/reviews) — 4.2/5 stars (650 reviews)
- [ActiveCampaign](https://www.g2.com/products/activecampaign/reviews) — 4.4/5 stars (14802 reviews)

### Alternatives to Validity Engage

- [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) — 4.5/5 stars (2743 reviews)
- [MailerLite](https://www.g2.com/products/mailerlite/reviews) — 4.6/5 stars (1113 reviews)
- [Intuit Mailchimp Email Marketing](https://www.g2.com/products/intuit-mailchimp-email-marketing/reviews) — 4.3/5 stars (12989 reviews)
- [Constant Contact](https://www.g2.com/products/constant-contact/reviews) — 4.1/5 stars (7570 reviews)
- [Klaviyo](https://www.g2.com/products/klaviyo/reviews) — 4.6/5 stars (1362 reviews)
- [Campaign Monitor](https://www.g2.com/products/campaign-monitor/reviews) — 4.1/5 stars (732 reviews)
- [Moosend](https://www.g2.com/products/moosend/reviews) — 4.7/5 stars (745 reviews)
- [Instantly](https://www.g2.com/products/instantly/reviews) — 4.8/5 stars (4157 reviews)
- [RGE Studio](https://www.g2.com/products/rge-studio/reviews) — 4.7/5 stars (349 reviews)
- [Twilio SendGrid Email Marketing Campaigns](https://www.g2.com/products/twilio-sendgrid-email-marketing-campaigns/reviews) — 4.0/5 stars (323 reviews)

---
## Top Discussions

### Email on Acid

No discussions available for this product.

### Validity Engage

- Title: [What is litmus what are its types and uses?](https://www.g2.com/discussions/what-is-litmus-what-are-its-types-and-uses) — 2 comments
  > **Top comment:** "Litmus is a tool that helps you to build email and collaborate with teamates during the process. You can preview your email in different email clients and..."
- Title: [What is DemandTools used for?](https://www.g2.com/discussions/what-is-demandtools-used-for) — 1 comment
  > **Top comment:** "Demand Tools is mainly used for managing and cleaning Salesforce data. It helps admins and data teams handle things like mass updates, deduplication,..."
- Title: [What is Litmus used for?](https://www.g2.com/discussions/what-is-litmus-used-for) — 1 comment
  > **Top comment:** "Pre-launch visual QA of marketing emails"
- Title: [Is never bounce free?](https://www.g2.com/discussions/briteverify-is-never-bounce-free) — 1 comment
  > **Top comment:** "No"
- Title: [What is litmus email testing?](https://www.g2.com/discussions/what-is-litmus-email-testing) — 1 comment
  > **Top comment:** "A feature that allows you to preview your email in different email client."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/email-on-acid-vs-validity-engage)