Klaviyo and Omnisend both operate in freemium email and SMS marketing automation, but they are built around different jobs. Klaviyo presents itself as a…
| Klaviyo | Omnisend | |
|---|---|---|
| Primary category | Email Marketing | Email Marketing |
| Rating | Not documented | Not documented |
| Pricing model | Freemium | Freemium |
| Starting price | Free (up to 250 profiles); paid plans from $20/month | Free (paid plans from about $16/month) |
| Free plan | Yes | Yes |
| Free trial | Not documented | Not documented |
| Platforms | Web | Web |
| Team collaboration | Not documented | Not documented |
| AI features | Yes | Not documented |
| Public API | Yes | Yes |
Core platform positioning
Klaviyo: Klaviyo positions itself as a B2C marketing and CRM platform, with a built-in customer data platform that feeds directly into segmentation and analytics.
Omnisend: Omnisend positions itself as an email and SMS marketing automation platform built specifically for ecommerce, with segmentation, forms, and pre-built workflows.
It determines whether the tool is meant to serve as a central customer data layer or as a dedicated ecommerce marketing channel tool alongside other systems.
Messaging channel coverage
Klaviyo: Klaviyo's omnichannel campaigns cover email, SMS, WhatsApp, and mobile push from one platform.
Omnisend: Omnisend's documented channels are email, SMS, and web push, combined in a single automation workflow builder.
WhatsApp support matters for brands messaging international or app-based audiences, while web push suits browser-based reengagement.
AI features
Klaviyo: Klaviyo has a dedicated AI product line, AI Composer and Customer Agent, for content generation and automated customer interactions.
Omnisend: Omnisend's documented feature set does not include an AI content or AI agent product.
Teams wanting AI-assisted campaign creation or automated conversational support get that capability natively in one tool but not the other, based on documented features.
Pricing structure
Klaviyo: Klaviyo prices across multiple separate product lines, Marketing, Data plus Analytics, and Service, scaled by contacts, without a single published starting price.
Omnisend: Omnisend publishes three flat tiers: Free, Standard starting around 16 dollars a month, and Pro starting around 59 dollars a month.
Predictable, published pricing is easier to budget against than contact-based pricing spread across several product lines.
Free plan limits
Klaviyo: Klaviyo's Free plan supports up to 250 active profiles and 500 email sends per month.
Omnisend: Omnisend's Free plan includes limited monthly email sends and limited contacts, along with signup forms, popups, and basic automation workflows.
The specific caps determine how long a growing list can stay on the free tier before needing to upgrade.
Ecommerce platform integrations
Klaviyo: Klaviyo's provided facts do not document specific ecommerce platform integrations.
Omnisend: Omnisend connects directly to Shopify, WooCommerce, BigCommerce, and Magento, syncing orders, products, and customer data.
Native, documented sync with a specific storefront platform reduces setup work for cart abandonment and product-based automations.
Reporting focus
Klaviyo: Klaviyo's documented reporting capability is tied to its customer data platform feeding segmentation and analytics, without a specifically documented revenue-reporting feature.
Omnisend: Omnisend documents revenue-focused reporting, with dashboards oriented around sales rather than just opens and clicks.
Revenue-oriented dashboards let ecommerce marketers tie campaigns directly to sales outcomes rather than engagement proxies.
Fit beyond ecommerce
Klaviyo: Klaviyo is documented as a B2C marketing and CRM platform, not limited to ecommerce use cases.
Omnisend: Omnisend's documented cons state it is less suited to non-ecommerce businesses without storefront data, and has limited depth for complex B2B needs like lead scoring.
Businesses without a transactional storefront, or with B2B lead-scoring needs, are explicitly documented as a weaker fit for one of the two tools.
Workflow setup speed
Klaviyo: Klaviyo's provided facts do not document a pre-built workflow template library.
Omnisend: Omnisend offers pre-built workflow templates for common ecommerce automations like welcome series and post-purchase follow-ups.
Ready-made templates reduce the time needed to launch standard automations compared to building logic from scratch.
| Feature | Klaviyo | Omnisend |
|---|---|---|
| Email campaigns | Available | Available |
| SMS marketing | Available | Available |
| WhatsApp messaging | Available | Not documented |
| Mobile app push notifications | Available | Not documented |
| Web push notifications | Not documented | Available |
| Feature | Klaviyo | Omnisend |
|---|---|---|
| Built-in customer data platform | Available | Not documented |
| Customer segmentation | Available | Available |
| Feature | Klaviyo | Omnisend |
|---|---|---|
| AI content generation | Available | Not documented |
| Automated AI customer interactions | Available | Not documented |
| Pre-built workflow templates | Not documented | Available |
| Feature | Klaviyo | Omnisend |
|---|---|---|
| Product recommendation blocks | Not documented | Available |
| Ecommerce platform integrations (Shopify, WooCommerce, BigCommerce, Magento) | Not documented | Available |
| Revenue-focused reporting | Not documented | Available |
| Feature | Klaviyo | Omnisend |
|---|---|---|
| Drag-and-drop email editor | Not documented | Available |
| Signup forms and popups | Not documented | Available |
| A/B testing | Not documented | Available |
| Feature | Klaviyo | Omnisend |
|---|---|---|
| Free plan | Available | Available |
| Published flat-rate paid tiers | Not documented | Available |
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Pros
Cons
Pros
Cons
Omnisend publishes a clear flat-rate structure, Free then Standard starting around 16 dollars a month and Pro around 59 dollars a month, while Klaviyo's paid pricing is contact-based across separate Marketing, Data plus Analytics, and Service product lines with no single published starting price, making it harder to compare directly.
No, Omnisend's documented cons state it is less suited to non-ecommerce businesses without storefront data, since its core features are built around orders and cart behavior.
Yes, Klaviyo's Free plan supports up to 250 active profiles and 500 email sends per month.
That is not documented for Omnisend, whose confirmed channels are email, SMS, and web push, while Klaviyo explicitly documents WhatsApp as part of its omnichannel campaigns feature alongside email, SMS, and mobile push.
Yes, Omnisend integrates directly with Shopify, along with WooCommerce, BigCommerce, and Magento, syncing orders, products, and customer data.
Klaviyo has a dedicated AI product line, AI Composer and Customer Agent, for content generation and automated customer interactions, while Omnisend's documented feature set does not include an AI content or AI agent product.
Read the full Klaviyo review · Read the full Omnisend review