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: Klaviyo — the platform for unified customer data.
Klaviyo: The platform for unified customer data
Omnisend: Ecommerce email and SMS made easy
Mailchimp: Turn emails into revenue
Feature Comparison
| Feature | Klaviyo | Omnisend | Mailchimp |
|---|---|---|---|
| Rating | 4.6/5 | 4.6/5 | 4.3/5 |
| Starting Price | $20/mo | $16/mo | $13/mo |
| Free Plan | 250 subscribers | 250 subscribers | 250 contacts, 500 emails/month |
| Founded | 2012 | 2014 | 2001 |
| Email Templates | 100 | 130 | 100 |
| Integrations | 350 | 130 | 300 |
| Deliverability Rate | 99% | 98.5% | 96% |
| Marketing Automation | ✓ | ✓ | ✓ |
| A/B Testing | ✓ | ✓ | ✓ |
| Landing Pages | ✓ | ✓ | ✓ |
| Segmentation | ✓ | ✓ | ✓ |
| Drag & Drop Editor | ✓ | ✓ | ✓ |
| SMS Marketing | ✓ | ✓ | ✓ |
| Ecommerce Features | ✓ | ✓ | ✓ |
| API Access | ✓ | ✓ | ✓ |
| Multi-Language | ✓ | ✓ | ✓ |
| Web Push Notifications | ✕ | ✓ | ✕ |
| Live Chat | ✕ | ✓ | ✕ |
| Advanced Analytics | ✓ | ✓ | ✓ |
The Verdict
| Criterion | Weight | Klaviyo | Omnisend | Mailchimp |
|---|---|---|---|---|
| Starting Price | 30% | $20/mo | $16/mo | $13/mo |
| Deliverability | 25% | 99% | 98.5% | 96% |
| Rating | 25% | 4.6/5 | 4.6/5 | 4.3/5 |
| Integrations | 10% | 350 | 130 | 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 (500 contacts, 1,000 sends)
- −Premium plan is expensive ($350/mo)
- −Charges for unsubscribed contacts
- −Affiliate marketing restricted
- −Deliverability has declined in recent years