Omnisend Review

Omnisend is an e-commerce email and SMS marketing platform that competes directly with Klaviyo at a significantly lower price point. It holds a 4.8 rating on the Shopify App Store from over 2,700 reviews and powers email marketing for more than 150,000 brands.

The platform bundles email, SMS, and web push notifications into every plan including the free tier, which is unusual in this space. For Shopify sellers, the integration is deep: product syncing, one-click abandoned cart automation, and hourly Shopify segment syncing all work out of the box.

For Amazon sellers, the picture is less clear. There is no direct Amazon Seller Central integration. You can connect via Zapier or use the Buy with Prime integration for basic order tracking, but Omnisend is fundamentally a Shopify-first tool.

The 27 pre-built automation workflows cover the full e-commerce lifecycle: welcome series, abandoned cart, browse abandonment, post-purchase, cross-sell, and win-back sequences. The abandoned cart flow can be set up and live in under 10 minutes with one click.

The AI segment builder lets you create audience segments from plain text descriptions. The AI Forms Assistant generates complete signup forms from a prompt. The Product Picker pulls items directly from your Shopify catalogue into emails with images, titles, and prices.

The Pro plan at $59 per month includes unlimited emails and SMS credits matched to your plan price, which simplifies budgeting compared to Klaviyo's separate SMS billing. Web push notifications are included on all plans, something Klaviyo does not offer at all.

The email builder includes around 350 templates, and the Universal Layouts feature lets you create reusable components like headers and footers that update across all emails when edited once. Recent updates added branded click tracking, cross-account template copying, and an AI Grammar Assistant.

The pricing advantage over Klaviyo is substantial. At 5,000 contacts, Omnisend Standard costs $81 per month versus roughly $150 for Klaviyo. At 10,000 contacts, it is $132 versus approximately $240. That gap compounds over time.

The free plan with 250 contacts and 500 emails per month is generous enough to properly test the platform before committing.

Where Omnisend falls short is deliverability. Independent testing shows inbox placement rates between 64% and 75%, which is below competitors like Mailchimp and ActiveCampaign. This means more of your emails may land in spam or promotions tabs. Good list hygiene and authentication setup mitigate this, but it is a real concern.

The other significant gap is analytics depth. Klaviyo offers predictive customer lifetime value, churn risk scoring, and expected next order date. Omnisend has standard reporting with segment performance on the Pro plan, but nothing approaching that level of predictive intelligence.

Omnisend is the right starting point for Shopify sellers who want professional email and SMS marketing without paying Klaviyo prices. The free plan lets you validate the platform with real revenue before spending a penny, and the Standard plan at $16 per month covers most growing stores.

Move to the Pro plan at $59 per month when you need unlimited emails and bundled SMS credits. Consider switching to Klaviyo only when your list exceeds 50K contacts and you need predictive analytics to drive segmentation decisions. If SMS is your primary channel, Postscript is worth a look as a dedicated SMS platform.

For a detailed comparison, see our Klaviyo vs Omnisend vs Postscript guide. For Amazon-only sellers, neither Omnisend nor Klaviyo offer direct value since Amazon restricts direct customer emailing. If you sell on both Shopify and Amazon, Omnisend can drive external traffic to Amazon listings and track the results through Amazon's Brand Referral Bonus programme.