# Klaviyo vs OneSignal Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Klaviyo excels in its powerful segmentation and automation capabilities, allowing users to send highly personalized email and SMS campaigns based on real customer behavior. This feature is particularly praised for its ability to create custom segments and flows, making it a favorite among businesses looking to enhance their marketing strategies.
- **Users say** OneSignal stands out for its user-friendly interface, which is described as clean and intuitive. Many appreciate how easy it is to navigate through the platform and set up campaigns without a steep learning curve, making it an attractive option for those new to marketing automation.
- **According to verified reviews** , Klaviyo's robust reporting features are a significant advantage, with users highlighting the ability to view detailed reports within campaigns. This level of insight helps businesses track performance effectively and make data-driven decisions.
- **Reviewers mention** that OneSignal's free plan is a major draw, especially for small businesses or startups. Users respect the platform for providing valuable features without locking them behind a paywall, which is a rarity in the industry.
- **G2 reviewers indicate** that while Klaviyo has a slightly more complex setup process, its overall ease of use is still commendable. Users appreciate the intuitive dashboard that facilitates quick learning and efficient management of multiple brands.
- **Users highlight** that Klaviyo's integration of SMS, email, and WhatsApp into a single platform enhances workflow efficiency, making it easier for teams to manage communications across different channels. This comprehensive approach is particularly beneficial for businesses looking to streamline their marketing efforts.



| | Klaviyo | OneSignal | 
|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.7 out of 5 | 
| **Total Reviews** | 1,354 | 1,196 | 
| **Largest Market Segment** | Small-Business (82.2% of reviews) | Small-Business (65.0% of reviews) | 
| **Entry Level Price** | No pricing available | Free | 

---
## Top Pros & Cons

### Klaviyo

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

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

### OneSignal

Pros:
- Ease of Use (143 reviews)
- Notifications (114 reviews)

Cons:
- Missing Features (33 reviews)
- Learning Curve (30 reviews)

---
## Ratings Comparison
| Rating | Klaviyo | OneSignal | 
|---|---|---|
  | **Meets Requirements** | 9.0 (988 reviews) | 9.0 (646 reviews) | 
  | **Ease of Use** | 8.6 (997 reviews) | 9.3 (1018 reviews) | 
  | **Ease of Setup** | 8.5 (645 reviews) | 8.9 (551 reviews) | 
  | **Ease of Admin** | 8.9 (522 reviews) | 9.0 (377 reviews) | 
  | **Quality of Support** | 8.4 (940 reviews) | 9.0 (597 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.9 (526 reviews) | 9.1 (353 reviews) | 
  | **Product Direction (% positive)** | 8.9 (936 reviews) | 9.0 (626 reviews) | 

---
## Pricing

### Klaviyo

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

### OneSignal

#### Entry-Level Pricing

Plan: Free

Price: Free

Description: Start with OneSignal's Free Plan which offers powerful messaging with an easy setup.

Key Features:
- 10,000 free monthly email sends
- Unlimited mobile push sends
- In-App messaging

[Browse all 4 editions](https://www.g2.com/products/onesignal/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Marketing Automation

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.2/10 | 679 |
| **OneSignal** | 8.5/10 | 148 |

#### Email Marketing

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Building and Personalizing Emails** | 9.0 (570 reviews) ✓ Verified | 8.6 (98 reviews) | 
| **Sending Outbound Emails** | 9.3 (559 reviews) ✓ Verified | 8.9 (96 reviews) | 
| **Manage Email Deliverability** | 8.9 (504 reviews) ✓ Verified | 8.8 (95 reviews) | 
| **Automated Email Responses** | 9.0 (497 reviews) ✓ Verified | 8.5 (90 reviews) | 

#### Online Marketing

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Landing Pages and Forms** | 7.9 (382 reviews) ✓ Verified | Feature Not Available | 
| **Dynamic Content** | 8.3 (406 reviews) ✓ Verified | 8.7 (95 reviews) | 
| **A/B Testing** | 8.7 (439 reviews) ✓ Verified | 8.6 (98 reviews) | 
| **Mobile Optimized** | 8.7 (454 reviews) | 9.1 (95 reviews) | 
| **Search Tracking and Optimization** | 8.2 (253 reviews) | Feature Not Available | 

#### Lead Management

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Marketing Lead Database** | 8.5 (356 reviews) | Feature Not Available | 
| **Data Quality Management** | 8.4 (273 reviews) | 8.5 (90 reviews) | 
| **Segmentation** | 9.0 (524 reviews) ✓ Verified | 9.2 (96 reviews) | 
| **Lead Scoring and Grading** | 7.8 (221 reviews) | Feature Not Available | 
| **Lead Nurturing** | 8.5 (359 reviews) ✓ Verified | 8.7 (91 reviews) | 
| **Online Behavior Tracking** | 8.5 (401 reviews) ✓ Verified | 8.5 (92 reviews) | 
| **Automated Alerts and Tasks** | 8.4 (333 reviews) ✓ Verified | 8.7 (95 reviews) | 
| **CRM Lead Integration** | 8.3 (289 reviews) ✓ Verified | 8.4 (85 reviews) | 

#### Campaign Management

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Program Management** | 8.7 (348 reviews) ✓ Verified | Feature Not Available | 
| **Event / Webinar Marketing** | 8.0 (199 reviews) | Feature Not Available | 
| **Calendaring** | 8.1 (288 reviews) ✓ Verified | Feature Not Available | 
| **Budgeting** | 7.6 (198 reviews) | Feature Not Available | 

#### Social

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Social Sharing** | 7.8 (196 reviews) | 8.3 (88 reviews) | 
| **Social Campaigns** | 7.8 (189 reviews) | Feature Not Available | 
| **Social Media Engagement** | 7.5 (184 reviews) | Feature Not Available | 
| **Social Media Advertising** | 7.8 (258 reviews) ✓ Verified | Feature Not Available | 

#### Reporting & Analytics

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Basic Reporting** | 8.5 (496 reviews) ✓ Verified | 8.6 (101 reviews) | 
| **Web Analytics** | 8.3 (416 reviews) ✓ Verified | 8.5 (88 reviews) | 
| **ROI Analytics** | 8.4 (429 reviews) ✓ Verified | 8.1 (87 reviews) | 
| **Revenue Analytics** | 8.4 (443 reviews) ✓ Verified | 8.1 (85 reviews) | 
| **SEO / Keyword Analytics** | 7.6 (200 reviews) | Feature Not Available | 

#### Platform

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Customization ** | 8.5 (337 reviews) ✓ Verified | 8.6 (97 reviews) | 
| **Workflow Capability** | 8.7 (329 reviews) ✓ Verified | 8.5 (91 reviews) | 
| **User, Role, and Access Management** | 8.9 (318 reviews) ✓ Verified | 8.3 (100 reviews) | 
| **Internationalization** | 8.3 (208 reviews) ✓ Verified | 8.2 (61 reviews) | 
| **Sandbox / Test Environments** | 7.8 (194 reviews) ✓ Verified | 8.2 (63 reviews) | 
| **Performance and Reliability** | 8.9 (325 reviews) ✓ Verified | 8.9 (100 reviews) | 
| **Output Document Generation** | 8.0 (161 reviews) | 8.0 (85 reviews) | 

#### Agentic AI - Marketing Automation

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **Data Import & Export Tools** | 8.5 (324 reviews) ✓ Verified | 8.2 (91 reviews) | 
| **Integration APIs** | 8.6 (324 reviews) ✓ Verified | 8.6 (99 reviews) | 
| **Breadth of Partner Applications** | 8.5 (273 reviews) ✓ Verified | 8.1 (89 reviews) | 

### Conversational Marketing

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

#### Messenger

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | 40 |
| **OneSignal** | N/A | N/A |

#### Diagnosis

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **Processing Time** | 8.3 (28 reviews) | Not enough data | 
| **Placement ** | 7.9 (28 reviews) | Not enough data | 
| **Open Rate** | 9.0 (35 reviews) | Not enough data | 
| **Time to Open** | 8.7 (31 reviews) | Not enough data | 
| **Alerts** | 8.6 (28 reviews) | Not enough data | 

#### Reporting

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | 

### Push Notification

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **OneSignal** | 8.3/10 | 554 |

#### Campaigns

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Customize** | Not enough data | 8.9 (464 reviews) | 
| **Scheduling** | Not enough data | 9.1 (456 reviews) | 
| **Retarget** | Not enough data | 8.6 (410 reviews) | 
| **Segmentation** | Not enough data | 8.8 (460 reviews) | 
| **Triggered Notifications** | Not enough data | 8.8 (448 reviews) | 

#### Analytics

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Campaign Performance** | Not enough data | 8.5 (444 reviews) | 
| **Audience Insights** | Not enough data | 8.3 (438 reviews) | 

#### Optimization

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **A/B Testing** | Not enough data | 8.4 (386 reviews) | 
| **Personalization** | Not enough data | 8.6 (424 reviews) | 
| **Rich Notifications** | Not enough data | 8.8 (432 reviews) | 
| **Integrations** | Not enough data | 8.7 (424 reviews) | 

#### Agentic AI - Push Notification

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 6.8 (13 reviews) | 
| **Adaptive Learning** | Not enough data | 7.1 (13 reviews) | 
| **Proactive Assistance** | Not enough data | 6.8 (13 reviews) | 

### Email Template Builder

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 8.1/10 | 501 |
| **OneSignal** | N/A | N/A |

#### Templates

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **Analytics** | 8.7 (428 reviews) ✓ Verified | Not enough data | 
| **Issues** | 7.9 (340 reviews) ✓ Verified | Not enough data | 
| **Integrations** | 8.8 (402 reviews) ✓ Verified | Not enough data | 
| **Shareable Link** | 8.4 (198 reviews) | Not enough data | 

#### Generative AI

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | 8.8/10 | 46 |

#### Text Messaging

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Bulk SMS** | 8.6 (151 reviews) | 9.1 (35 reviews) | 
| **Two-Way Text Messaging** | 8.1 (101 reviews) | Feature Not Available | 
| **Text Scheduler** | 8.8 (133 reviews) ✓ Verified | 9.1 (35 reviews) | 
| **Automatic Replies** | 8.3 (115 reviews) ✓ Verified | Feature Not Available | 
| **Automatic URL Shortening** | 8.7 (126 reviews) ✓ Verified | 8.2 (33 reviews) | 
| **MMS Marketing** | 8.5 (107 reviews) | 8.5 (34 reviews) | 
| **Personalization** | 8.9 (135 reviews) ✓ Verified | 8.9 (36 reviews) | 
| **Transactional SMS** | 8.7 (55 reviews) | 9.1 (32 reviews) | 

#### SMS Platform

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Reporting** | 8.6 (135 reviews) ✓ Verified | 8.9 (34 reviews) | 
| **Automation** | 8.9 (135 reviews) ✓ Verified | 8.8 (34 reviews) | 
| **Short Codes** | 8.3 (63 reviews) | 8.5 (31 reviews) | 
| **API Integration** | 8.8 (111 reviews) ✓ Verified | 9.1 (35 reviews) | 

#### Agentic AI - SMS Marketing

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### Data Sourcing

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Data Enrichment** | 8.4 (76 reviews) | Not enough data | 
| **Expandability** | 8.3 (68 reviews) | Not enough data | 
| **Content Marketing** | 8.5 (96 reviews) | Not enough data | 
| **Multiple Devices** | 8.5 (91 reviews) | Not enough data | 

#### Intelligence

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Marketing Metrics** | 8.6 (105 reviews) | Not enough data | 
| **Predictive Modeling** | 8.1 (73 reviews) | Not enough data | 
| **Recommendation Engine** | 8.0 (68 reviews) | Not enough data | 

### Pop-Up Builder

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

#### Design and Customization

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

#### Agentic AI - Vulnerability Scanner

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### Platform Basics

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

#### Platform Data

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### Collection

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

#### Moderation

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

### Proactive Notification

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **OneSignal** | 8.6/10 | 147 |

#### Messaging Channels

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **SMS Messaging** | Not enough data | 8.0 (82 reviews) | 
| **Email** | Not enough data | 8.7 (95 reviews) | 
| **Voice Messaging** | Not enough data | 7.2 (70 reviews) | 
| **Two way messaging** | Not enough data | Feature Not Available | 

#### Administration

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Scheduling** | Not enough data | 9.2 (120 reviews) | 
| **Triggered Notifications** | Not enough data | 9.2 (123 reviews) | 
| **Segmentation** | Not enough data | 9.0 (124 reviews) | 
| **Integrations** | Not enough data | 8.9 (119 reviews) | 

### Online Form Builder

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

#### Customization

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### WhatsApp Messaging - WhatsApp Marketing

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### Agentic AI - Personalization

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### Messaging - RCS Business Messaging

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **AI** | Not enough data | Not enough data | 

### AI Marketing Agents

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **OneSignal** | N/A | N/A |

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

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

### Mobile Marketing

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | N/A | N/A |
| **OneSignal** | 8.6/10 | 223 |

#### Analysis

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Application Attribution** | Not enough data | 8.7 (97 reviews) | 
| **Campaign Analysis** | Not enough data | 8.7 (170 reviews) ✓ Verified | 
| **Uninstall Tracking** | Not enough data | 8.2 (142 reviews) | 
| **Custom Dashboards** | Not enough data | 8.3 (151 reviews) | 

#### Campaigns

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Proximity Marketing** | Not enough data | 8.7 (147 reviews) ✓ Verified | 
| **Push Notifications** | Not enough data | 9.5 (194 reviews) ✓ Verified | 
| **Bulk SMS** | Not enough data | 8.1 (80 reviews) | 
| **Two-Way Text Messaging** | Not enough data | Feature Not Available | 
| **Email Campaigns** | Not enough data | 8.4 (138 reviews) | 
| **Audience Segmentation** | Not enough data | 8.8 (181 reviews) | 

#### Engagement

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Coupons and Promotions** | Not enough data | 8.2 (135 reviews) | 

#### Platform

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **Optimization** | Not enough data | 8.9 (148 reviews) | 
| **Integrations - Mobile Marketing** | Not enough data | 9.0 (156 reviews) ✓ Verified | 
| **Internationalization** | Not enough data | 8.7 (141 reviews) | 

#### Agentic AI - Mobile Marketing

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

### Marketing Analytics

| Product | Score | Reviews |
|---|---|---|
| **Klaviyo** | 7.8/10 | 27 |
| **OneSignal** | N/A | N/A |

#### Marketing Operations

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **ROI Tracking** | 8.5 (19 reviews) | Not enough data | 
| **Data Collection** | 8.4 (18 reviews) | Not enough data | 
| **Customer Insights** | 8.8 (20 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 | OneSignal | 
|---|---|---|
| **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 | OneSignal | 
|---|---|---|
| **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 |
| **OneSignal** | N/A | N/A |

#### Agentic AI - AI Agents

| Feature | Klaviyo | OneSignal | 
|---|---|---|
| **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 (3):** [SMS Marketing Software](https://www.g2.com/categories/sms-marketing), [Marketing Automation Software](https://www.g2.com/categories/marketing-automation), [ RCS Business Messaging Software](https://www.g2.com/categories/rcs-business-messaging)

**Unique to Klaviyo (12):** [AI Marketing Agents Software](https://www.g2.com/categories/ai-marketing-agents), [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), [Customer Data Platforms (CDP)](https://www.g2.com/categories/customer-data-platform-cdp), [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)

**Unique to OneSignal (3):** [Push Notification Software](https://www.g2.com/categories/push-notification), [Mobile Marketing Software](https://www.g2.com/categories/mobile-marketing), [Proactive Notification Software](https://www.g2.com/categories/proactive-notification)


---
## Reviewer Demographics

### By Company Size

| Segment | Klaviyo | OneSignal | 
|---|---|---|
| **Small-Business** | 82.2% | 65.0% | 
| **Mid-Market** | 16.1% | 28.2% | 
| **Enterprise** | 1.7% | 6.9% | 

### 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:** 23.9%

#### OneSignal

- **Computer Software:** 12.8%
- **Information Technology and Services:** 10.1%
- **Financial Services:** 6.0%
- **Health, Wellness and Fitness:** 4.3%
- **Online Media:** 3.9%
- **Computer Games:** 3.9%
- **Entertainment:** 3.7%
- **Marketing and Advertising:** 3.1%
- **Consumer Services:** 2.9%
- **Education Management:** 2.6%
- **Other:** 46.4%

---
## Alternatives

### Alternatives to Klaviyo

- [ActiveCampaign](https://www.g2.com/products/activecampaign/reviews) — 4.4/5 stars (14698 reviews)
- [Braze](https://www.g2.com/products/braze/reviews) — 4.5/5 stars (1683 reviews)
- [Dotdigital](https://www.g2.com/products/dotdigital/reviews) — 4.4/5 stars (1208 reviews)
- [Agentforce Marketing (formerly Salesforce Marketing Cloud)](https://www.g2.com/products/agentforce-marketing-formerly-salesforce-marketing-cloud/reviews) — 4.0/5 stars (4623 reviews)
- [Iterable](https://www.g2.com/products/iterable/reviews) — 4.4/5 stars (824 reviews)
- [Bloomreach](https://www.g2.com/products/bloomreach-bloomreach/reviews) — 4.6/5 stars (764 reviews)
- [Ortto](https://www.g2.com/products/ortto/reviews) — 4.4/5 stars (622 reviews)
- [HubSpot Marketing Hub](https://www.g2.com/products/hubspot-marketing-hub/reviews) — 4.4/5 stars (14781 reviews)
- [Insider One](https://www.g2.com/products/insider-one/reviews) — 4.8/5 stars (1365 reviews)
- [SAP Engagement Cloud (formerly SAP Emarsys)](https://www.g2.com/products/sap-engagement-cloud-formerly-sap-emarsys/reviews) — 4.2/5 stars (624 reviews)

### Alternatives to OneSignal

- [Braze](https://www.g2.com/products/braze/reviews) — 4.5/5 stars (1683 reviews)
- [MoEngage](https://www.g2.com/products/moengage/reviews) — 4.5/5 stars (524 reviews)
- [Iterable](https://www.g2.com/products/iterable/reviews) — 4.4/5 stars (824 reviews)
- [Customer.io](https://www.g2.com/products/customer-io/reviews) — 4.4/5 stars (830 reviews)
- [Insider One](https://www.g2.com/products/insider-one/reviews) — 4.8/5 stars (1365 reviews)
- [CleverTap](https://www.g2.com/products/clevertap/reviews) — 4.6/5 stars (656 reviews)
- [WebEngage](https://www.g2.com/products/webengage/reviews) — 4.5/5 stars (751 reviews)
- [Pushwoosh](https://www.g2.com/products/pushwoosh/reviews) — 4.3/5 stars (48 reviews)
- [SendPulse](https://www.g2.com/products/sendpulse/reviews) — 4.6/5 stars (715 reviews)
- [PushEngage](https://www.g2.com/products/pushengage/reviews) — 4.6/5 stars (53 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."

### OneSignal

- Title: [What is OneSignal used for?](https://www.g2.com/discussions/what-is-onesignal-used-for) — 3 comments, 3 upvotes
  > **Top comment:** "OneSignal is a customer engagement platform primarily used for sending push notifications, email notifications, and in-app messaging. 

"
- Title: [Is One signal a good push notifications service](https://www.g2.com/discussions/is-one-signal-a-good-push-notifications-service) — 3 comments, 1 upvote
  > **Top comment:** "Yes it is"
- Title: [When will you add monitization options?](https://www.g2.com/discussions/24867-when-will-you-add-monitization-options) — 2 comments, 1 upvote
  > **Top comment:** "in my opinion and experience using one signal, you cant monetize the message itself, but you can direct your users to any monetized website and read..."
- Title: [Easy to use](https://www.g2.com/discussions/onesignal-easy-to-use) — 1 comment, 1 upvote
  > **Top comment:** "Certainly"
- Title: [How can I download a report of the goblad outcomes of my push notifications](https://www.g2.com/discussions/how-can-i-download-a-report-of-the-goblad-outcomes-of-my-push-notifications) — 1 comment, 1 upvote
  > **Top comment:** "you need to update your plan to a paid plan ... then you can export it from the page of the message, below the chart."

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