Omnisend was built specifically for ecommerce — unlike Mailchimp (general-purpose) or ActiveCampaign (B2B SaaS focus). Like Klaviyo, it integrates with Shopify, WooCommerce, and BigCommerce and offers the core ecommerce automation flows: abandoned cart, welcome series, post-purchase, and win-back campaigns.
The strategic difference: Klaviyo targets brands that want the best email tool and will pay for it. Omnisend targets brands that want good email + SMS + push notifications in one budget-friendly platform. Both are legitimate choices — the right one depends on your revenue stage and technical ambitions.
Both platforms pull Shopify purchase events, browse events, and customer data into their automation systems. Klaviyo's integration is deeper — it captures more granular events and its data model is more flexible for advanced segmentation.
Omnisend's Shopify integration covers the core events needed for standard ecommerce flows: purchases, cart events, browse abandonment, and customer profile data. For 80% of ecommerce use cases, Omnisend's integration is sufficient.
| Flow type | Klaviyo | Omnisend |
|---|---|---|
| Welcome series | Yes | Yes |
| Abandoned cart | Yes | Yes |
| Browse abandonment | Yes | Yes |
| Post-purchase | Yes | Yes |
| Win-back | Yes | Yes |
| Predictive send timing | Yes | Yes |
| Conditional splits | Advanced | Basic |
| A/B testing in flows | Yes | Limited |
| Predictive analytics (CLV, next order) | Yes | No |
Klaviyo's conditional splits within flows are more powerful. You can build complex branching logic: if customer has placed more than 3 orders AND predicted CLV is above $300 AND last purchase was in a specific product category, take branch A; otherwise take branch B. This level of personalisation in automated flows is where Klaviyo's deeper data model pays dividends.
Omnisend's flows are simpler but cover the standard use cases effectively. For most stores, the standard abandoned cart, post-purchase, win-back flow architecture is sufficient, and Omnisend executes these cleanly.
Omnisend includes SMS in its email plans with a shared credit system — you get email sends and SMS sends from one plan cost. This is a meaningful advantage: brands that want email + SMS without two separate platform subscriptions find Omnisend's pricing more efficient.
Klaviyo treats SMS as a separate product with its own pricing layer on top of email plans. To get Klaviyo email + Klaviyo SMS, you're paying two separate monthly fees. For brands with modest SMS needs (under 5,000 SMS/month), Omnisend's bundled approach is substantially cheaper and simpler.
| Contacts | Klaviyo (email only) | Omnisend (email + SMS) |
|---|---|---|
| 500 | Free (500 emails) | Free (500 emails + 60 SMS) |
| 1,000 | $30/month | $16/month |
| 5,000 | $100/month | $59/month |
| 10,000 | $150/month | $115/month |
| 25,000 | $400/month | $270/month |
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Try Sellable free →At every contact tier, Omnisend is significantly cheaper — and it includes SMS that Klaviyo charges extra for. The pricing gap narrows at higher volumes but Omnisend remains cheaper throughout.
Omnisend for brands under $50K/month in revenue who want email + SMS in one platform at a reasonable price. The automation flows cover standard ecommerce needs, the pricing is materially better than Klaviyo, and the bundled SMS is a genuine value-add.
Klaviyo for brands that are serious about email as a primary revenue channel, need advanced segmentation and conditional flow logic, want predictive CLV and next-order-date analytics built in, or are already investing in the DTC community where Klaviyo expertise is most abundant.
You can export your Klaviyo contact list as a CSV and import it to Omnisend. Flows (automation sequences) don't export directly — you'll need to rebuild them in Omnisend's flow builder. Most standard ecommerce flows take 1–2 hours to recreate. Plan 1–2 days for a full migration including testing.
Both platforms maintain strong deliverability reputations. Deliverability is primarily driven by your list hygiene (suppressing unengaged contacts), sending consistent volume, and your domain authentication setup — these factors matter more than the platform choice for most brands.
Yes. Omnisend integrates with WooCommerce (via plugin), BigCommerce (native integration), and Magento. The WooCommerce integration covers the core event data needed for standard ecommerce flows. WooCommerce users on Omnisend report it as a strong Mailchimp alternative at a lower price than Klaviyo.
Send the first abandoned cart email 1–2 hours after cart abandonment (highest recovery rate window), a second email 24 hours later if no purchase (include a small discount or social proof), and an optional third email at 72 hours. Don't send more than 3 emails in an abandoned cart sequence. The first email is always the highest-performing — focus your best copywriting on that one.
Klaviyo's A/B testing capabilities are more comprehensive — you can test subject lines, send times, email content, and from names within flows and campaigns. Omnisend's A/B testing is more basic, primarily covering subject lines and from names. For brands that actively test email performance, Klaviyo's testing infrastructure is meaningfully better.
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