Omnisend vs Klaviyo 2026: Which Ecommerce Email Platform Wins?

Omnisend and Klaviyo are both built specifically for ecommerce email marketing. Both integrate with Shopify, WooCommerce, and BigCommerce. Both offer automation flows, product recommendations, and SMS. But they differ significantly in pricing, analytics depth, and SMS handling.

This comparison will help you choose the right one for your store.

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Quick Comparison Table

Pricing Comparison

At 500 contacts:

• Omnisend Standard: $16/month (unlimited emails + SMS credits)
• Klaviyo Email: $20/month (unlimited emails, no SMS)

At 5,000 contacts:

• Omnisend Standard: ~$59/month
• Klaviyo Email: $100/month

At 10,000 contacts:

• Omnisend Standard: ~$99/month
• Klaviyo Email: $150/month

At 25,000 contacts:

• Omnisend Standard: ~$199/month
• Klaviyo Email: $400/month

Key difference: Omnisend includes SMS credits on all paid plans. Klaviyo charges extra for SMS (the Email + SMS plan at 500 contacts costs $35/month vs $20 for email-only). When you factor in SMS, Omnisend is 30-60% cheaper than Klaviyo at every tier.

Note: Pricing may change — verify on Omnisend and Klaviyo.

Shopify & Ecommerce Integration

Both platforms integrate deeply with Shopify, but Klaviyo's integration is slightly deeper.

Klaviyo Shopify sync:

• Product catalog (images, prices, URLs)
• Customer profiles (purchase history, lifetime value)
• Browsing behavior (products viewed, categories browsed)
• Cart data (items, value, abandonment)
• Order data (purchase date, items, revenue)
• Predictive metrics (LTV, churn risk, next order)

Omnisend Shopify sync:

• Product catalog (images, prices, URLs)
• Customer profiles (purchase history)
• Browsing behavior (products viewed)
• Cart data (items, value, abandonment)
• Order data (purchase date, items, revenue)
• No predictive metrics

Verdict: Klaviyo syncs more behavioral data and calculates predictive metrics. Omnisend covers all the core ecommerce data needed for abandoned cart, product recommendations, and purchase-based segmentation. If you need predictive analytics, Klaviyo is the only option. If you do not, Omnisend is sufficient.

Automation & Flows

Omnisend automation:

• Visual workflow builder
• Pre-built workflows: welcome, abandoned cart, browse abandonment, post-purchase, win-back, birthday
• Triggers: signup, cart abandoned, product viewed, order placed, custom event
• Email + SMS + web push in same workflow
• Conditional branching
• A/B testing (on Pro plan)

Klaviyo flows:

• Visual flow builder
• Pre-built flow templates: welcome, abandoned cart, browse abandonment, post-purchase, win-back, price drop, back in stock
• Triggers: signup, cart abandoned, product viewed, order placed, metric-based, date-based
• Email + SMS in same flow (with SMS add-on)
• Conditional branching with predictive metric conditions
• A/B testing within flows
• Revenue tracking per flow

Verdict: Klaviyo's flows have more trigger options and can use predictive metrics as conditions (e.g., "only send to customers with churn risk > 50%"). Omnisend's flows are capable and include web push notifications (which Klaviyo does not offer). For most ecommerce automation use cases, both platforms handle the job. Klaviyo has the edge for data-driven, predictive flow logic.

SMS Marketing

Omnisend SMS:

• Included on all paid plans
• Monthly SMS credits included (amount varies by plan)
• SMS campaigns and transactional SMS
• SMS within automation workflows
• Available in US, UK, Canada, Australia, and EU
• MMS support

Klaviyo SMS:

• Add-on to email plan (Email + SMS plan)
• Costs extra ($15/month more at 500 contacts)
• SMS campaigns and transactional SMS
• SMS within flows
• Available in US, UK, Canada, Australia, and 20+ countries
• MMS support

Verdict: Omnisend wins on SMS value. Including SMS credits on all paid plans without an extra charge makes it significantly cheaper for stores that use both email and SMS. Klaviyo's SMS functionality is equally capable but costs more.

Analytics & Predictive Features

Klaviyo analytics:

• Revenue per email campaign
• Revenue per flow
• Revenue per subscriber
• Revenue attributed to email vs SMS
• Industry benchmarks (183,000+ customers)
• Predicted customer lifetime value
• Churn risk score
• Expected next order date
• AI product recommendations (click lift: 3.75% average)

Omnisend analytics:

• Revenue per campaign
• Revenue per workflow
• Open rates, click rates, conversion rates
• Industry benchmarks (Omnisend customer base)
• AI product recommendations
• No predictive LTV, churn risk, or next order prediction

Verdict: Klaviyo wins this category. Its predictive analytics suite is unique in the market and provides data that no other ecommerce email platform offers. If your business strategy depends on customer lifetime value modeling, churn prevention, and predictive segmentation, Klaviyo is the clear choice.

Best Use Cases for Each

Omnisend is best for:

• Small to mid-size ecommerce stores on a budget
• Stores that want email + SMS without paying extra
• Businesses that want web push notifications
• Shopify stores that do not need predictive analytics
• Stores with AOV < $50 where Klaviyo's premium is harder to justify

Klaviyo is best for:

• Established ecommerce brands with AOV > $50
• Stores that want predictive analytics and revenue attribution
• Data-driven teams that segment by LTV and churn risk
• Brands where email generates significant revenue
• Stores that need the deepest Shopify integration

The Winner: Which Should You Choose?

Choose Omnisend if: Budget is a primary concern, you want SMS included, or your store is not yet large enough to justify Klaviyo's premium pricing. Omnisend gives you 80% of Klaviyo's functionality at 60% of the cost.

Choose Klaviyo if: You want the deepest analytics, predictive metrics, and revenue attribution. If your email program generates enough revenue to justify the higher cost, Klaviyo's data tools can help you optimize and scale.

The bottom line: For stores under 5,000 contacts or with AOV < $50, Omnisend offers better value. For stores over 10,000 contacts with AOV > $50, Klaviyo's predictive analytics and revenue attribution can pay for themselves through better segmentation and targeting.

Last updated: August 2026. Pricing and features are subject to change — verify on Omnisend and Klaviyo before making a decision.