# Klaviyo vs Retention Science Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Klaviyo excels in user-friendliness, with many users praising its intuitive interface that allows for easy management of multiple brands. This is complemented by robust segmentation and automation features, enabling highly personalized email and SMS campaigns based on real customer behavior.
- **Users say** that Retention Science stands out for its advanced predictive analytics and lifecycle-based automation, which help businesses make informed decisions about customer retention. Reviewers appreciate features like the US-Market Calibrated Predictive Churn Scoring, tailored for compliance-specific signals, which enhances its effectiveness for fintech users.
- **According to verified reviews** , Klaviyo's reporting capabilities are a significant advantage, allowing users to easily track campaign performance and gain insights. This feature is particularly valued by users who need to analyze data within campaigns to optimize their marketing strategies.
- **Reviewers mention** that while Retention Science offers strong capabilities in managing email deliverability and automated responses, it may not be as widely recognized or utilized as Klaviyo, which has a larger market presence and a more extensive user base, leading to more frequent updates and community support.
- **Users highlight** that Klaviyo's ease of setup is a strong point, with many finding the onboarding process straightforward and quick. This contrasts with some feedback for Retention Science, where users have noted challenges in configuration that could slow down initial implementation.
- **G2 reviewers indicate** that while both platforms provide valuable features for email marketing, Klaviyo's superior segmentation capabilities and user-friendly dashboard make it a preferred choice for businesses looking to enhance their marketing automation efforts, especially for those managing multiple brands.



| | Klaviyo | Retention Science | 
|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.5 out of 5 | 
| **Total Reviews** | 1,355 | 34 | 
| **Largest Market Segment** | Small-Business (82.2% of reviews) | Small-Business (46.9% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Klaviyo

Pros:
- Ease of Use (167 reviews)
- Email Marketing (131 reviews)

Cons:
- Expensive (73 reviews)
- Learning Curve (63 reviews)

### Retention Science

Pros:
- AI Technology (2 reviews)
- Automation Efficiency (2 reviews)

Cons:
- Campaign Issues (2 reviews)
- Learning Curve (2 reviews)

---
## Ratings Comparison
| Rating | Klaviyo | Retention Science | 
|---|---|---|
  | **Meets Requirements** | 9.0 (989 reviews) | 8.9 (29 reviews) | 
  | **Ease of Use** | 8.6 (998 reviews) | 8.9 (29 reviews) | 
  | **Ease of Setup** | 8.5 (646 reviews) | 8.1 (9 reviews) | 
  | **Ease of Admin** | 8.9 (522 reviews) | 7.8 (9 reviews) | 
  | **Quality of Support** | 8.4 (941 reviews) | 8.8 (29 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.9 (526 reviews) | 8.0 (9 reviews) | 
  | **Product Direction (% positive)** | 8.9 (937 reviews) | 9.2 (28 reviews) | 

---
## Pricing

### Klaviyo

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

### Retention Science

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Marketing Automation

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.2/10 | 680 |
| **Retention Science** | 8.7/10 | 20 |

#### Email Marketing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Building and Personalizing Emails** | 9.0 (571 reviews) ✓ Verified | 8.7 (18 reviews) | 
| **Sending Outbound Emails** | 9.3 (560 reviews) ✓ Verified | 9.2 (18 reviews) | 
| **Manage Email Deliverability** | 8.9 (505 reviews) ✓ Verified | 8.6 (18 reviews) | 
| **Automated Email Responses** | 9.0 (498 reviews) ✓ Verified | 9.2 (16 reviews) | 

#### Online Marketing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Landing Pages and Forms** | 7.9 (382 reviews) ✓ Verified | 9.0 (15 reviews) | 
| **Dynamic Content** | 8.3 (406 reviews) ✓ Verified | 8.3 (17 reviews) | 
| **A/B Testing** | 8.7 (440 reviews) ✓ Verified | 8.8 (18 reviews) | 
| **Mobile Optimized** | 8.7 (455 reviews) | 9.2 (16 reviews) | 
| **Search Tracking and Optimization** | 8.2 (253 reviews) | Feature Not Available | 

#### Lead Management

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Marketing Lead Database** | 8.5 (356 reviews) | 9.1 (15 reviews) | 
| **Data Quality Management** | 8.4 (273 reviews) | 8.4 (16 reviews) | 
| **Segmentation** | 9.0 (525 reviews) ✓ Verified | 7.7 (18 reviews) | 
| **Lead Scoring and Grading** | 7.8 (221 reviews) | 8.8 (15 reviews) | 
| **Lead Nurturing** | 8.5 (360 reviews) ✓ Verified | 8.9 (17 reviews) | 
| **Online Behavior Tracking** | 8.5 (402 reviews) ✓ Verified | 8.5 (16 reviews) | 
| **Automated Alerts and Tasks** | 8.4 (333 reviews) ✓ Verified | Feature Not Available | 
| **CRM Lead Integration** | 8.3 (289 reviews) ✓ Verified | Feature Not Available | 

#### Campaign Management

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Program Management** | 8.7 (348 reviews) ✓ Verified | Feature Not Available | 
| **Event / Webinar Marketing** | 8.0 (200 reviews) | Feature Not Available | 
| **Calendaring** | 8.1 (288 reviews) ✓ Verified | Feature Not Available | 
| **Budgeting** | 7.6 (198 reviews) | Feature Not Available | 

#### Social

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Social Sharing** | 7.8 (196 reviews) | Feature Not Available | 
| **Social Campaigns** | 7.8 (189 reviews) | Feature Not Available | 
| **Social Media Engagement** | 7.5 (184 reviews) | 9.3 (15 reviews) | 
| **Social Media Advertising** | 7.8 (258 reviews) ✓ Verified | 9.0 (16 reviews) | 

#### Reporting & Analytics

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Basic Reporting** | 8.5 (497 reviews) ✓ Verified | 8.5 (17 reviews) | 
| **Web Analytics** | 8.3 (416 reviews) ✓ Verified | 8.9 (15 reviews) | 
| **ROI Analytics** | 8.4 (429 reviews) ✓ Verified | 8.8 (16 reviews) | 
| **Revenue Analytics** | 8.4 (443 reviews) ✓ Verified | 8.5 (16 reviews) | 
| **SEO / Keyword Analytics** | 7.6 (200 reviews) | Feature Not Available | 

#### Platform

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Customization ** | 8.5 (338 reviews) ✓ Verified | 8.4 (15 reviews) | 
| **Workflow Capability** | 8.7 (330 reviews) ✓ Verified | Feature Not Available | 
| **User, Role, and Access Management** | 8.9 (318 reviews) ✓ Verified | 8.4 (16 reviews) | 
| **Internationalization** | 8.3 (208 reviews) ✓ Verified | Feature Not Available | 
| **Sandbox / Test Environments** | 7.8 (194 reviews) ✓ Verified | Feature Not Available | 
| **Performance and Reliability** | 8.9 (326 reviews) ✓ Verified | 8.9 (16 reviews) | 
| **Output Document Generation** | 8.0 (161 reviews) | Feature Not Available | 

#### Agentic AI - Marketing Automation

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 6.8 (27 reviews) | Not enough data | 
| **Multi-step Planning** | 7.0 (25 reviews) | Not enough data | 
| **Cross-system Integration** | 7.4 (26 reviews) | Not enough data | 
| **Adaptive Learning** | 7.0 (23 reviews) | Not enough data | 
| **Proactive Assistance** | 6.9 (26 reviews) | Not enough data | 
| **Decision Making** | 7.3 (25 reviews) | Not enough data | 

#### Integration

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Data Import & Export Tools** | 8.5 (324 reviews) ✓ Verified | 8.7 (15 reviews) | 
| **Integration APIs** | 8.6 (324 reviews) ✓ Verified | 8.4 (15 reviews) | 
| **Breadth of Partner Applications** | 8.5 (273 reviews) ✓ Verified | 8.3 (14 reviews) | 

### Conversational Marketing

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 7.0/10 | 17 |
| **Retention Science** | N/A | N/A |

#### Messenger

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Sequencing** | 7.6 (14 reviews) | Not enough data | 
| **AI** | 6.4 (14 reviews) | Not enough data | 
| **Live Chat** | 6.5 (14 reviews) | Not enough data | 
| **Customization Interface** | 6.3 (13 reviews) | Not enough data | 

#### Channels

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Social Media** | 6.4 (13 reviews) | Not enough data | 
| **Website** | 7.4 (14 reviews) | Not enough data | 
| **Text Message (SMS)** | 6.5 (14 reviews) | Not enough data | 
| **Voice Assistants** | 6.3 (13 reviews) | Not enough data | 
| **Other** | 6.9 (13 reviews) | Not enough data | 

#### Customers

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Targeting** | 8.3 (14 reviews) | Not enough data | 
| **Profiles** | 7.7 (14 reviews) | Not enough data | 
| **Analytics** | 7.3 (13 reviews) | Not enough data | 
| **Lead Gathering** | 6.9 (13 reviews) | Not enough data | 
| **Sales Conversion** | 6.9 (14 reviews) | Not enough data | 

#### Agentic AI - Conversational Marketing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **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 | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

### Email Deliverability

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.3/10 | 41 |
| **Retention Science** | N/A | N/A |

#### Diagnosis

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **IP Address ** | 8.2 (29 reviews) | Not enough data | 
| **Domains** | 8.6 (30 reviews) | Not enough data | 
| **Content ** | 8.4 (33 reviews) | Not enough data | 
| **Policy Compliance** | 8.5 (31 reviews) | Not enough data | 

#### Tracking

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Processing Time** | 8.3 (28 reviews) | Not enough data | 
| **Placement ** | 7.9 (28 reviews) | Not enough data | 
| **Open Rate** | 9.0 (36 reviews) | Not enough data | 
| **Time to Open** | 8.8 (32 reviews) | Not enough data | 
| **Alerts** | 8.6 (28 reviews) | Not enough data | 

#### Reporting

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Campaign Performance** | 9.1 (33 reviews) | Not enough data | 
| **Domain Reputation** | 8.7 (29 reviews) | Not enough data | 
| **Brand Reputation** | 8.7 (29 reviews) | Not enough data | 
| **Blacklist and Whitelist** | 8.4 (27 reviews) | Not enough data | 

#### Agentic AI - Email Deliverability

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 8.2 (14 reviews) | Not enough data | 
| **Cross-system Integration** | 8.1 (15 reviews) | Not enough data | 
| **Adaptive Learning** | 8.0 (14 reviews) | Not enough data | 
| **Proactive Assistance** | 7.3 (14 reviews) | Not enough data | 
| **Decision Making** | 8.0 (14 reviews) | Not enough data | 

### Email Template Builder

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.1/10 | 502 |
| **Retention Science** | N/A | N/A |

#### Templates

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Text and Themes** | 8.6 (427 reviews) ✓ Verified | Not enough data | 
| **Stock Images** | Feature Not Available | Not enough data | 
| **Proofing** | 8.4 (348 reviews) ✓ Verified | Not enough data | 
| **Mobile Responsive** | 8.8 (259 reviews) | Not enough data | 

#### Edit

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Pre-Made** | 8.4 (359 reviews) ✓ Verified | Not enough data | 
| **Build** | 8.8 (422 reviews) ✓ Verified | Not enough data | 
| **HTML** | 8.3 (334 reviews) ✓ Verified | Not enough data | 

#### Logistics

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Analytics** | 8.7 (428 reviews) ✓ Verified | Not enough data | 
| **Issues** | 7.9 (340 reviews) ✓ Verified | Not enough data | 
| **Integrations** | 8.8 (403 reviews) ✓ Verified | Not enough data | 
| **Shareable Link** | 8.4 (198 reviews) | Not enough data | 

#### Generative AI

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **AI Text Generation** | 7.5 (66 reviews) | Not enough data | 
| **AI Text Summarization** | 7.4 (52 reviews) | Not enough data | 

#### Agentic AI - Email Template Builder

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 6.4 (19 reviews) | Not enough data | 
| **Cross-system Integration** | 7.0 (19 reviews) | Not enough data | 

### SMS Marketing

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.0/10 | 172 |
| **Retention Science** | N/A | N/A |

#### Text Messaging

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Bulk SMS** | 8.6 (151 reviews) | Not enough data | 
| **Two-Way Text Messaging** | 8.1 (101 reviews) | Not enough data | 
| **Text Scheduler** | 8.8 (133 reviews) ✓ Verified | Not enough data | 
| **Automatic Replies** | 8.3 (115 reviews) ✓ Verified | Not enough data | 
| **Automatic URL Shortening** | 8.7 (126 reviews) ✓ Verified | Not enough data | 
| **MMS Marketing** | 8.5 (107 reviews) | Not enough data | 
| **Personalization** | 8.9 (135 reviews) ✓ Verified | Not enough data | 
| **Transactional SMS** | 8.7 (55 reviews) | Not enough data | 

#### SMS Platform

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Reporting** | 8.6 (135 reviews) ✓ Verified | Not enough data | 
| **Automation** | 8.9 (135 reviews) ✓ Verified | Not enough data | 
| **White Label** | Feature Not Available | Not enough data | 
| **Text-to-Landline** | Feature Not Available | Not enough data | 
| **Short Codes** | 8.3 (63 reviews) | Not enough data | 
| **API Integration** | 8.8 (111 reviews) ✓ Verified | Not enough data | 

#### Agentic AI - SMS Marketing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 6.8 (11 reviews) | Not enough data | 
| **Multi-step Planning** | 6.7 (10 reviews) | Not enough data | 
| **Cross-system Integration** | 6.8 (10 reviews) | Not enough data | 
| **Natural Language Interaction** | 6.7 (10 reviews) | Not enough data | 
| **Proactive Assistance** | 6.8 (10 reviews) | Not enough data | 
| **Decision Making** | 7.0 (10 reviews) | Not enough data | 

### Customer Data Platform (CDP)

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.4/10 | 131 |
| **Retention Science** | 9.1/10 | 15 |

#### Data Sourcing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Data Enrichment** | 8.4 (76 reviews) | 9.2 (14 reviews) | 
| **Expandability** | 8.3 (68 reviews) | 9.3 (14 reviews) | 
| **Content Marketing** | 8.5 (96 reviews) | 9.1 (15 reviews) | 
| **Multiple Devices** | 8.5 (91 reviews) | 9.2 (14 reviews) | 

#### Intelligence

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Marketing Metrics** | 8.6 (105 reviews) | 9.2 (14 reviews) | 
| **Predictive Modeling** | 8.1 (73 reviews) | 8.9 (14 reviews) | 
| **Recommendation Engine** | 8.0 (68 reviews) | 8.9 (14 reviews) | 

### Pop-Up Builder

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.5/10 | 31 |
| **Retention Science** | N/A | N/A |

#### Design and Customization

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Pre-Designed Templates** | 9.0 (24 reviews) | Not enough data | 
| **Pop-Up Types** | 8.9 (25 reviews) | Not enough data | 
| **No-Code Customization** | 9.1 (24 reviews) | Not enough data | 
| **Mobile Optimized** | 8.9 (22 reviews) | Not enough data | 

#### Campaigns

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Targeting** | 8.8 (24 reviews) | Not enough data | 
| **Triggered Campaigns** | 8.9 (22 reviews) | Not enough data | 
| **A/B Testing** | 8.8 (24 reviews) | Not enough data | 
| **Analytics** | 8.8 (25 reviews) | Not enough data | 

#### Integrations

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **CRM/Email Integrations** | 9.1 (23 reviews) | Not enough data | 
| **WCM Integrations** | 8.1 (19 reviews) | Not enough data | 
| **E-Commerce Integrations** | 9.1 (25 reviews) | Not enough data | 
| **Social Media Integrations** | 8.5 (20 reviews) | Not enough data | 

#### Generative AI

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **AI Text Generation** | 7.5 (20 reviews) | Not enough data | 

#### Agentic AI - Vulnerability Scanner

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 6.8 (10 reviews) | Not enough data | 
| **Proactive Assistance** | 7.5 (10 reviews) | Not enough data | 

### Customer Journey Analytics

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 7.9/10 | 21 |
| **Retention Science** | N/A | N/A |

#### Platform Basics

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Dynamic Segmentation** | 9.0 (17 reviews) | Not enough data | 
| **Journey Optimization** | 9.0 (16 reviews) | Not enough data | 

#### Platform Data

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Journey Reporting** | 8.5 (16 reviews) | Not enough data | 
| **Trends Reporting** | 8.3 (15 reviews) | Not enough data | 
| **Dashboards** | 8.8 (15 reviews) | Not enough data | 
| **Advanced Data Filtering** | 8.2 (15 reviews) | Not enough data | 

#### Platform Additional Functionality

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Journey Mapping** | 8.4 (16 reviews) | Not enough data | 
| **Integrations** | 9.2 (14 reviews) | Not enough data | 
| **Automated Alerts** | 8.3 (14 reviews) | Not enough data | 

#### Agentic AI - Customer Journey Analytics

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 6.0 (5 reviews) | Not enough data | 
| **Cross-system Integration** | 7.0 (5 reviews) | Not enough data | 
| **Adaptive Learning** | 6.3 (5 reviews) | Not enough data | 
| **Proactive Assistance** | 6.9 (6 reviews) | Not enough data | 

### Review Management

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.6/10 | 10 |
| **Retention Science** | N/A | N/A |

#### Collection

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Authentification** | 7.4 (7 reviews) | Not enough data | 
| **Review Forms** | 8.8 (7 reviews) | Not enough data | 
| **Personalization** | 8.6 (6 reviews) | Not enough data | 
| **Engagement** | 8.6 (6 reviews) | Not enough data | 
| **Community Q&A** | 7.2 (6 reviews) | Not enough data | 

#### Agentic AI - Review Management

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 

#### Moderation

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Reviewer Validation** | 9.5 (7 reviews) | Not enough data | 
| **Response Types** | 9.0 (5 reviews) | Not enough data | 
| **Legal Agreements** | 9.3 (5 reviews) | Not enough data | 

#### Use Cases

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **E-commerce** | 9.8 (9 reviews) | Not enough data | 
| **Retail** | 8.9 (6 reviews) | Not enough data | 
| **Customer Service** | 9.7 (5 reviews) | Not enough data | 

#### Administration

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Incentives** | 9.3 (7 reviews) | Not enough data | 
| **Syndication** | 8.6 (6 reviews) | Not enough data | 
| **Insights** | 8.0 (5 reviews) | Not enough data | 
| **Content** | 8.0 (5 reviews) | Not enough data | 
| **Sampling** | 8.0 (5 reviews) | Not enough data | 

#### Display Options

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Badges** | 8.6 (6 reviews) | Not enough data | 
| **Widgets** | 8.3 (7 reviews) | Not enough data | 
| **Integration & APIs** | 8.3 (6 reviews) | Not enough data | 
| **Marketing** | 8.1 (6 reviews) | Not enough data | 

#### Generative AI

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **AI Text Generation** | 7.8 (6 reviews) | Not enough data | 

### Online Form Builder

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 7.4/10 | 6 |
| **Retention Science** | N/A | N/A |

#### Customization

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Custom Fields** | Not enough data | Not enough data | 
| **Conditional Logic** | 8.6 (6 reviews) | Not enough data | 
| **Multi-page Forms** | 7.0 (5 reviews) | Not enough data | 
| **Design** | 6.7 (5 reviews) | Not enough data | 

#### Additional Functionality

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Embedded Forms** | 7.0 (5 reviews) | Not enough data | 
| **Offline Capability** | 7.7 (5 reviews) | Not enough data | 
| **Notifications** | Not enough data | Not enough data | 
| **Payments** | Not enough data | Not enough data | 
| **Mobile Forms** | Not enough data | Not enough data | 

### WhatsApp Marketing

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **Retention Science** | N/A | N/A |

#### WhatsApp Messaging - WhatsApp Marketing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Transactional Messages** | Not enough data | Not enough data | 
| **Bulk WhatsApp Messaging** | Not enough data | Not enough data | 
| **Conversational Messaging** | Not enough data | Not enough data | 
| **Personalization** | Not enough data | Not enough data | 
| **Promotional Messages** | Not enough data | Not enough data | 
| **Automated Replies** | Not enough data | Not enough data | 

#### WhatsApp Business Platform - WhatsApp Marketing

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Segmentation** | Not enough data | Not enough data | 
| **API Integration** | Not enough data | Not enough data | 
| **WhatsApp Commerce** | Not enough data | Not enough data | 
| **Analytics** | Not enough data | Not enough data | 

### Personalization

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 6.9/10 | 17 |
| **Retention Science** | N/A | N/A |

#### Agentic AI - Personalization

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 6.9 (14 reviews) | Not enough data | 
| **Cross-system Integration** | 7.0 (14 reviews) | Not enough data | 
| **Adaptive Learning** | 6.9 (15 reviews) | Not enough data | 
| **Natural Language Interaction** | 6.8 (14 reviews) | Not enough data | 
| **Proactive Assistance** | 6.3 (14 reviews) | Not enough data | 
| **Decision Making** | 7.4 (16 reviews) | Not enough data | 

### RCS Business Messaging

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **Retention Science** | N/A | N/A |

#### Messaging - RCS Business Messaging

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Personalization** | Not enough data | Not enough data | 
| **Rich Media** | Not enough data | Not enough data | 
| **Interactive Messages** | Not enough data | Not enough data | 
| **Branded Templates** | Not enough data | Not enough data | 
| **Automation** | Not enough data | Not enough data | 
| **Conversational RCS** | Not enough data | Not enough data | 
| **Transactional RCS** | Not enough data | Not enough data | 
| **Promotional RCS** | Not enough data | Not enough data | 

#### Security / Verification - RCS Business Messaging

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Verified Sender** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Authentification** | Not enough data | Not enough data | 

#### Analytics / Deliverability - RCS Business Messaging

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Read Receipts** | Not enough data | Not enough data | 
| **Analytics** | Not enough data | Not enough data | 
| **SMS Fallback** | Not enough data | Not enough data | 

#### AI - RCS Business Messaging

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **AI** | Not enough data | Not enough data | 

### AI Marketing Agents

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **Retention Science** | N/A | N/A |

#### Performance Optimization & Learning - AI Marketing Agents

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Send-Time Optimization** | Not enough data | Not enough data | 
| **Autonomous A/B Testing** | Not enough data | Not enough data | 

#### Autonomous Campaign Orchestration - AI Marketing Agents 

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **End-to-End Campaign Execution** | Not enough data | Not enough data | 
| **Goal-Based Campaign Planning** | Not enough data | Not enough data | 
| **Cross-Channel Orchestration** | Not enough data | Not enough data | 
| **Conversational Campaign Setup** | Not enough data | Not enough data | 
| **Real-Time Campaign Adaptation** | Not enough data | Not enough data | 

#### AI Content Generation - AI Marketing Agents 

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Dynamic Content Optimization** | Not enough data | Not enough data | 
| **AI Copy Generation** | Not enough data | Not enough data | 
| **Personalized Content Creation** | Not enough data | Not enough data | 

#### Audience Intelligence & Segmentation - AI Marketing Agents 

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Lookalike Audience Modeling** | Not enough data | Not enough data | 
| **Behavioral Triggering** | Not enough data | Not enough data | 
| **Predictive Audience Segmentation** | Not enough data | Not enough data | 

#### Integrations & Data Connectivity - AI Marketing Agents 

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Event & Data Ingestion** | Not enough data | Not enough data | 
| **CRM & CDP Integration** | Not enough data | Not enough data | 

### Marketing Analytics

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 7.8/10 | 28 |
| **Retention Science** | N/A | N/A |

#### Marketing Operations

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **ROI Tracking** | 8.5 (19 reviews) | Not enough data | 
| **Data Collection** | 8.5 (19 reviews) | Not enough data | 
| **Customer Insights** | 8.8 (21 reviews) | Not enough data | 
| **Multi-User Access** | 8.8 (17 reviews) | Not enough data | 
| **Spend Management** | 7.3 (16 reviews) | Not enough data | 
| **White Label** | 7.6 (15 reviews) | Not enough data | 

#### Campaign Activity

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Campaign Insights** | 8.1 (18 reviews) | Not enough data | 
| **Reports and Dashboards** | 8.5 (23 reviews) | Not enough data | 
| **Campaign Stickiness** | 8.1 (17 reviews) | Not enough data | 
| **Multichannel Tracking** | 7.5 (17 reviews) | Not enough data | 
| **Brand Optimization** | 8.1 (17 reviews) | Not enough data | 
| **Predictive Analytics** | 8.1 (16 reviews) | Not enough data | 

#### Agentic AI - Marketing Analytics

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **Autonomous Task Execution** | 7.6 (7 reviews) | Not enough data | 
| **Cross-system Integration** | 7.6 (7 reviews) | Not enough data | 
| **Proactive Assistance** | 7.9 (8 reviews) | Not enough data | 

### AI Agents

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **Retention Science** | N/A | N/A |

#### Agentic AI - AI Agents

| Feature | Klaviyo | Retention Science | 
|---|---|---|
| **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 | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (2):** [Customer Data Platforms (CDP)](https://www.g2.com/categories/customer-data-platform-cdp), [Marketing Automation Software](https://www.g2.com/categories/marketing-automation)

**Unique to Klaviyo (13):** [AI Marketing Agents Software](https://www.g2.com/categories/ai-marketing-agents), [SMS Marketing Software](https://www.g2.com/categories/sms-marketing), [Pop-Up Builder Software](https://www.g2.com/categories/pop-up-builder), [Email Template Builder Software](https://www.g2.com/categories/email-template-builder), [Personalization Software](https://www.g2.com/categories/personalization), [Email Deliverability Tools](https://www.g2.com/categories/email-deliverability), [Conversational Marketing Software](https://www.g2.com/categories/conversational-marketing), [Customer Journey Analytics Software](https://www.g2.com/categories/customer-journey-analytics), [Marketing Analytics Software](https://www.g2.com/categories/marketing-analytics), [Review Management Software](https://www.g2.com/categories/review-management-software), [Online Form Builder Software](https://www.g2.com/categories/online-form-builder), [WhatsApp Marketing Software](https://www.g2.com/categories/whatsapp-marketing), [ RCS Business Messaging Software](https://www.g2.com/categories/rcs-business-messaging)



---
## Reviewer Demographics

### By Company Size

| Segment | Klaviyo | Retention Science | 
|---|---|---|
| **Small-Business** | 82.2% | 46.9% | 
| **Mid-Market** | 16.1% | 40.6% | 
| **Enterprise** | 1.7% | 12.5% | 

### By Industry

#### Klaviyo

- **Retail:** 19.3%
- **Marketing and Advertising:** 12.7%
- **Apparel & Fashion:** 12.6%
- **Consumer Goods:** 11.6%
- **Health, Wellness and Fitness:** 7.2%
- **Food & Beverages:** 4.6%
- **Cosmetics:** 2.8%
- **Luxury Goods & Jewelry:** 2.2%
- **Sporting Goods:** 1.6%
- **Consumer Electronics:** 1.5%
- **Other:** 24.0%

#### Retention Science

- **Retail:** 12.5%
- **Marketing and Advertising:** 12.5%
- **Education Management:** 12.5%
- **Apparel & Fashion:** 12.5%
- **Information Technology and Services:** 9.4%
- **Computer Software:** 9.4%
- **Health, Wellness and Fitness:** 6.3%
- **Staffing and Recruiting:** 3.1%
- **Non-Profit Organization Management:** 3.1%
- **Music:** 3.1%
- **Other:** 15.6%

---
## Alternatives

### Alternatives to Klaviyo

- [ActiveCampaign](https://www.g2.com/products/activecampaign/reviews) — 4.4/5 stars (14703 reviews)
- [Braze](https://www.g2.com/products/braze/reviews) — 4.5/5 stars (1684 reviews)
- [Dotdigital](https://www.g2.com/products/dotdigital/reviews) — 4.4/5 stars (1215 reviews)
- [Agentforce Marketing (formerly Salesforce Marketing Cloud)](https://www.g2.com/products/agentforce-marketing-formerly-salesforce-marketing-cloud/reviews) — 4.0/5 stars (4628 reviews)
- [Iterable](https://www.g2.com/products/iterable/reviews) — 4.4/5 stars (826 reviews)
- [Bloomreach](https://www.g2.com/products/bloomreach-bloomreach/reviews) — 4.6/5 stars (765 reviews)
- [Ortto](https://www.g2.com/products/ortto/reviews) — 4.4/5 stars (624 reviews)
- [HubSpot Marketing Hub](https://www.g2.com/products/hubspot-marketing-hub/reviews) — 4.4/5 stars (14808 reviews)
- [Insider One](https://www.g2.com/products/insider-one/reviews) — 4.8/5 stars (1375 reviews)
- [SAP Engagement Cloud (formerly SAP Emarsys)](https://www.g2.com/products/sap-engagement-cloud-formerly-sap-emarsys/reviews) — 4.2/5 stars (627 reviews)

### Alternatives to Retention Science

- [HubSpot Marketing Hub](https://www.g2.com/products/hubspot-marketing-hub/reviews) — 4.4/5 stars (14808 reviews)
- [Bloomreach](https://www.g2.com/products/bloomreach-bloomreach/reviews) — 4.6/5 stars (765 reviews)
- [SAP Engagement Cloud (formerly SAP Emarsys)](https://www.g2.com/products/sap-engagement-cloud-formerly-sap-emarsys/reviews) — 4.2/5 stars (627 reviews)
- [Adobe Marketo Engage](https://www.g2.com/products/adobe-marketo-engage/reviews) — 4.1/5 stars (3138 reviews)
- [Insider One](https://www.g2.com/products/insider-one/reviews) — 4.8/5 stars (1375 reviews)
- [Iterable](https://www.g2.com/products/iterable/reviews) — 4.4/5 stars (826 reviews)
- [ActiveCampaign](https://www.g2.com/products/activecampaign/reviews) — 4.4/5 stars (14703 reviews)
- [Drip](https://www.g2.com/products/drip/reviews) — 4.4/5 stars (478 reviews)
- [Tealium Customer Data Hub](https://www.g2.com/products/tealium-customer-data-hub/reviews) — 4.3/5 stars (479 reviews)
- [Braze](https://www.g2.com/products/braze/reviews) — 4.5/5 stars (1684 reviews)

---
## Top Discussions

### Klaviyo

- Title: [What is UTM tracking Klaviyo?](https://www.g2.com/discussions/what-is-utm-tracking-klaviyo) — 3 comments
  > **Top comment:** "You can add Google Analytics utm tracking data to your emails sent in Klayvio. This can be automated."
- Title: [how can i know the language for my clients](https://www.g2.com/discussions/13491-how-can-i-know-the-language-for-my-clients) — 3 comments, 1 upvote
  > **Top comment:** "You need to add a dynamic in your website when collecting data then use a segmentatino of your data into language preferences based on the tick..."
- Title: [What is Klaviyo used for?](https://www.g2.com/discussions/what-is-klaviyo-used-for) — 2 comments
  > **Top comment:** "It is a tool for email  marketing."
- Title: [Does Klaviyo integrate with Shopify?](https://www.g2.com/discussions/does-klaviyo-integrate-with-shopify) — 2 comments
  > **Top comment:** "Yes"
- Title: [Are their pre-built flows available?](https://www.g2.com/discussions/13499-are-their-pre-built-flows-available) — 2 comments, 1 upvote
  > **Top comment:** "You can set up any combination of new flows and even run split tests on  those in a flow. They also have video tutorials to do this."

### Retention Science

- Title: [What is least helpful about Retention Science? What are the downsides of using Retention Science?](https://www.g2.com/discussions/46420-what-is-least-helpful-about-retention-science-what-are-the-downsides-of-using-retention-science) — 1 comment, 1 upvote
  > **Top comment:** "What is least helpful about Retention Science? What are the downsides of using Retention Science?"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/klaviyo-vs-retention-science)