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Klaviyo vs Omnisend vs Mailchimp

Online store owners frequently debate whether to go with a dedicated ecommerce platform like Klaviyo or Omnisend, or stick with Mailchimp's familiar interface. This comparison helps ecommerce businesses decide between specialist depth and generalist flexibility.

Quick Verdict

Best for most users: Mailchimp — email and sms marketing with automation for small businesses.

Klaviyo: Email and SMS marketing on customer data for ecommerce brands

Omnisend: Email and SMS marketing for ecommerce stores

Mailchimp: Email and SMS marketing with automation for small businesses

Klaviyo

Email and SMS marketing on customer data for ecommerce brands

4.3/5 Free plan · from $20/mo

Omnisend

Email and SMS marketing for ecommerce stores

4.5/5 Free plan · from $16/mo

Mailchimp

Email and SMS marketing with automation for small businesses

4.3/5 Free plan · from $13/mo

Feature Comparison

Feature Klaviyo Omnisend Mailchimp
Rating 4.3/5 4.5/5 4.3/5
Starting Price $20/mo $16/mo $13/mo
Free Plan 250 active profiles, 500 email sends/month 250 contacts, 500 emails/month 250 contacts, 500 emails/month
Founded 2012 2014 2001
Email Templates 100 130 100
Integrations 350 200 300
Independent Inbox Test No independent test No independent test No independent test
Marketing Automation Yes Yes Yes
A/B Testing Yes Yes Yes
Landing Pages Yes Yes Yes
Segmentation Yes Yes Yes
Drag & Drop Editor Yes Yes Yes
SMS Marketing Yes Yes Yes
Ecommerce Features Yes Yes Yes
API Access Yes Yes Yes
Multi-Language Yes Yes Yes
Web Push Notifications No Yes No
Live Chat No Yes Yes
Advanced Analytics Yes Yes Yes

The Verdict

Criterion Weight Klaviyo Omnisend Mailchimp
Starting Price 30% $20/mo $16/mo $13/mo
Deliverability 25% 4.4/5 4.4/5 3.9/5
Rating 25% 4.3/5 4.5/5 4.3/5
Integrations 10% 350 200 300
Free Tier 10% Yes Yes Yes

Choose Klaviyo if…

  • + Best for retail
  • + Best for fashion
  • + Best-in-class ecommerce integrations (Shopify, WooCommerce)

Choose Omnisend if…

  • + Best for woocommerce
  • + Purpose-built for ecommerce

Choose Mailchimp if…

  • + Lowest starting price ($13/mo)
  • + Best for beginners
  • + Best for nonprofits

Klaviyo: Pros & Cons

Pros

  • + Best-in-class ecommerce integrations (Shopify, WooCommerce)
  • + Powerful segmentation with predictive analytics
  • + Excellent deliverability (99%+)
  • + Revenue attribution for every email and SMS
  • + Deep customer data platform capabilities

Cons

  • − Expensive for large lists
  • − Steep learning curve
  • − Free plan very limited (250 contacts)
  • − SMS credits sold separately
  • − Can be overkill for non-ecommerce businesses

Omnisend: Pros & Cons

Pros

  • + Purpose-built for ecommerce
  • + Pre-built automation workflows for common ecommerce flows
  • + SMS, email, and web push in one platform
  • + Easy Shopify and WooCommerce integration
  • + Good free plan for small stores

Cons

  • − Not suitable for non-ecommerce use cases
  • − Free plan very limited (250 contacts)
  • − Gets pricey at higher subscriber counts
  • − Fewer general integrations than Mailchimp
  • − Limited blog/content marketing features

Mailchimp: Pros & Cons

Pros

  • + Most recognized brand in email marketing
  • + Excellent drag-and-drop editor
  • + 300+ integrations with third-party tools
  • + Strong analytics and reporting
  • + Good for beginners with guided setup

Cons

  • − Free plan severely limited (250 contacts, 500 sends)
  • − Premium plan is expensive ($350/mo)
  • − Charges for unsubscribed contacts
  • − Affiliate marketing restricted
  • − Deliverability has declined in recent years