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Email Marketing Comparison

Klaviyo vs. Omnisend

At a glance

At a glance

Klaviyo

Best for

Best for ecommerce and B2C teams that want email and SMS driven by a customer data platform with real-time segmentation and deep store data.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Omnisend

Best for

Best for ecommerce stores that want email, SMS and web push in one platform, with ready integrations for Shopify, BigCommerce and WooCommerce.

  • Small and mid-sized
  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Klaviyo Omnisend
Starting price Free plan for up to 250 active profiles and 500 email sends a month The free plan also carries $5 of mobile messages and $5 of Composer usage a month, with email support for the first 60 days. Paid plans scale with the number of active profiles and the message volume on top. From $16 / month Standard plan for up to 500 contacts, billed monthly; the price scales with the number of contacts. A free plan is also available.
Free trial Free plan for up to 250 active profiles and 500 email sends per month, plus $5 of mobile messages a month Free plan for up to 250 contacts and 500 emails per month
API Yes, a REST API with webhooks, SDKs, warehouse syncs and more than 350 integrations Yes, API access on all plans
Hosting Cloud (SaaS) Cloud (SaaS)
Made in United States Not stated
Campaign types Yes, email campaigns with SMS and push from the same customer profiles Yes, email campaigns, SMS and MMS, and web push notifications
Automation and journeys Yes, automation flows triggered by customer behaviour and events Yes, automation workflows across email, SMS and push
Segmentation and personalisation Yes, real-time segmentation with predictive analytics on unified customer profiles Yes, unlimited segmentation and contact profiles on all plans
Templates and editor Yes, a drag-and-drop email editor with templates Yes, a drag-and-drop editor with email templates
Deliverability and testing Yes, deliverability tools with reporting and revenue attribution Yes, A/B testing on all plans
Ecommerce and CRM data Yes, a customer data platform with deep ecommerce data and more than 350 integrations including Shopify and WooCommerce Yes, ecommerce integrations for Shopify, BigCommerce, WooCommerce, WordPress and Wix
Integrations and API Yes, a REST API with webhooks, SDKs and warehouse syncs Yes, API access on all plans
AI features stated Yes No
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Email helpdesk, Chat, Community forum Not stated
Onboarding Documentation and knowledge base, Live online demos and webinars, Personal consulting Not stated
Company size more entries Freelancers, Small and mid-sized, Enterprise Small and mid-sized, Enterprise
Integrations Shopify, Magento 1.x, Magento 2.x, BigCommerce, WooCommerce, Wix, OpenCart, PrestaShop, Spree, Shift4Shop, Volusion Not stated

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price Klaviyo Free plan for up to 250 active profiles and 500 email sends a month Omnisend From $16 / month
  • Free trial Klaviyo Free plan for up to 250 active profiles and 500 email sends per month, plus $5 of mobile messages a month Omnisend Free plan for up to 250 contacts and 500 emails per month
  • Company size Klaviyo Freelancers, Small and mid-sized, Enterprise Omnisend Small and mid-sized, Enterprise
  • AI features Klaviyo Yes Omnisend No
  • API Klaviyo Yes, a REST API with webhooks, SDKs, warehouse syncs and more than 350 integrations Omnisend Yes, API access on all plans

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Klaviyo

Strengths

  • Customer data platform with unified profiles behind email, SMS and push
  • Real-time segmentation with predictive analytics
  • More than 350 integrations including Shopify and WooCommerce
  • Free plan for up to 250 active profiles

Limitations

  • Pricing scales with the number of active profiles
  • The free plan is limited to 500 email sends a month

Omnisend

Strengths

  • Email, SMS and web push in one platform
  • Unlimited segmentation and API access on all plans
  • Ready ecommerce integrations for Shopify, BigCommerce and WooCommerce
  • Free plan for up to 250 contacts

Limitations

  • Pricing scales with the number of contacts
  • SMS is charged separately, from $0.007 per message
  • Free and Standard plans cap monthly email sends

Plans

Pricing

Klaviyo

  • Free $0 / month Up to 250 active profiles, 500 email sends a month and $5 of mobile messages a month, with email support for the first 60 days.
  • Email Not stated Paid email plan that scales with the number of active profiles, with higher sending allowances.
  • Email and SMS Not stated Adds SMS and mobile messaging on top of the email plan, priced by active profiles and message volume.
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Omnisend

  • Free $0 / month Up to 250 contacts, 500 emails per month and 500 web push notifications, with all features.
  • Standard From $16 / month Up to 6,000 emails per month for 500 contacts; adds email support. Scales with the number of contacts.
  • Pro From $59 / month Unlimited emails, advanced reporting and no Omnisend branding; SMS from $0.007 per message. Scales with the number of contacts.
  • Custom Not stated Custom pricing for businesses with 150,000+ contacts, with a dedicated account expert.
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What users say

Review Scores · opens after launch

Klaviyo

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Omnisend

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

Klaviyo https://www.klaviyo.com · checked against the official source on 2026-09-17

Omnisend https://www.omnisend.com · checked against the official source on 2026-08-20

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.