Klaviyo vs Omnisend: Which Ecommerce Platform Fits?

Klaviyo and Omnisend are often compared because they target the same buyer: an ecommerce brand that wants email and text messages tied to store data. The differences are in scope and price. Klaviyo positions itself as a B2C CRM with service, analytics and AI agents around its marketing tools. Omnisend keeps a tighter focus on email, SMS, push notifications and sign-up forms, and competes on price and support. Here is how they compare on the points that matter when you choose.

The short answer

• Choose Omnisend for a small or mid-sized store that wants email, SMS and web push automations and round-the-clock support without a large bill.
• Choose Klaviyo for a store that wants app messaging, WhatsApp or RCS, onsite personalization and AI agents on the same data.
• Test both on their free plans; each covers 250 contacts.

Klaviyo vs Omnisend at a glance

Pricing and plans

Klaviyo pricing (as of October 2026)

Klaviyo prices by active profiles and the products you include. The Free plan covers up to 250 active profiles and 500 emails a month, with $5 of mobile messages and $5 of Composer usage a month. For 500 active profiles, the pricing page estimates the Email plan at $20 a month (5,000 emails a month, A/B testing, 350+ integrations) and the Marketing plan at $90 a month, which adds mobile push and in-app messages, predictive analytics, social marketing tools and Customer Hub features such as onsite personalization, product recommendations, loyalty rewards and order tracking. See Klaviyo pricing.

Omnisend pricing (as of October 2026)

Omnisend has three self-serve plans. Free is $0 a month for 250 contacts, 500 emails and 500 web push notifications a month. Standard was listed at $11.20 a month for the first three months with a 30% discount, for 500 contacts and 6,000 emails a month with unlimited web push, after which it is billed monthly at the regular rate. Pro was listed at $41.30 a month for the first three months under the same offer, for 2,500 contacts with unlimited emails and SMS starting at $0.007 per message (the rate Omnisend says applies to high-volume US sends; SMS prices vary by country and volume). Larger senders can request a custom offer. See Omnisend pricing.

Channels

Omnisend covers email, SMS and browser push notifications, plus popups, embedded forms, flyouts and landing pages for list growth. Klaviyo covers email and SMS too, and adds RCS, WhatsApp, mobile app push and in-app messages and social marketing. If your customers mainly shop on your website, Omnisend's channel set is often enough. If you have a mobile app or sell in markets where WhatsApp matters, Klaviyo covers more ground. Our roundup of WhatsApp marketing platforms compares other options for that channel.

Automation and segmentation

Omnisend builds automations that combine email, SMS and push in one view, with prebuilt flows for abandoned carts, browse recovery, post-purchase follow-ups and win-backs. Its segmentation is behavior-based (purchases, opens, clicks, location), it shows a customer lifecycle map by stage, and its AI assistant can build a segment from a plain description. Klaviyo's flows and segments run on profile and event data from your store, and its Marketing plan adds predictive analytics and segment performance reports. Both tools cover the standard ecommerce flows; Klaviyo goes further on predictive data and onsite personalization.

AI features

Omnisend's Standard plan includes two AI tools (Forms AI and Reports AI), and Pro includes five, adding dynamic content, the personalized product recommender and personalized sending time. Omnisend also offers an MCP connection so you can check performance, create campaigns and manage segments from an AI tool. Klaviyo's Composer audits and creates flows and campaigns from a prompt, and Customer Agent supports shoppers using your data, with generative AI for content, images and segments on paid plans. For more agent-style options, see our list of AI marketing tools.

Support, integrations and migration

Omnisend says it offers 24/7 live chat and email support to all customers on any plan, including free, and assigns an account expert at no charge to customers paying at least $400 a month. Klaviyo's free plan includes email support for the first 60 days, with the help center, community and academy available after that. Omnisend lists 305+ integrations, including Shopify, WooCommerce and Wix; Klaviyo lists 350+. Omnisend also offers a free 5-day migration in which its team moves flows, lists, templates and setup, and promotes a migration path from Klaviyo specifically.

On reporting, Omnisend breaks down sales by email, SMS and push, compares campaigns and automations on opens, clicks, conversions and sales, and tracks bounces, unsubscribes and failures. Klaviyo includes reports and dashboards on its free plan, adds audience and conversion dashboards on the Email plan, and adds marketing and segment performance reports on the Marketing plan.

Limits of each

• Klaviyo: the Marketing plan, where most of its multichannel and personalization features sit, costs several times the Email plan at small list sizes.
• Klaviyo: free plan support is limited to email for the first 60 days.
• Omnisend: no mobile app push, WhatsApp or RCS listed among its channels.
• Omnisend: the introductory 30% discount covers only the first three months, so budget on the regular monthly rate.
• Omnisend: fewer AI tools on Standard than on Pro.

Which should you choose

Start with how many channels you will really run in the next year. A store that will send email, some SMS and browser push gets most of what it needs from Omnisend, with lower entry pricing and support on every plan. A store with a mobile app, international WhatsApp customers or plans for loyalty and onsite personalization will use more of Klaviyo. Whichever you choose, rebuild your top three flows (welcome, abandoned cart, post-purchase) first and compare results before moving everything.

Alternatives worth a look

See our comparisons of Klaviyo vs Mailchimp and Klaviyo vs HubSpot, our list of Klaviyo alternatives with stronger personalization, and our roundup of Shopify SMS marketing apps.

Frequently Asked Questions

Is Omnisend cheaper than Klaviyo?
At the entry tiers shown on each pricing page in October 2026, Omnisend's Standard plan was listed at $11.20 a month for the first three months (30% off) for 500 contacts, while Klaviyo's Email plan was estimated at $20 a month for 500 active profiles. Prices change with list size and the channels you add, so price your own list on both pages before deciding.

Which is better for Shopify stores?
Both connect to Shopify. Omnisend lists Shopify, WooCommerce and Wix among 305+ integrations and is built around email, SMS and web push for stores. Klaviyo lists 350+ integrations and adds mobile app push and in-app messages, WhatsApp, RCS and onsite personalization, so it fits stores that want more channels and data features.

Does Omnisend help you move from Klaviyo?
Yes. Omnisend's site offers a free 5-day migration in which its team moves flows, lists, templates and setup, and it promotes a dedicated migration from Klaviyo.

Do both have free plans?
Yes. Klaviyo's free plan covers up to 250 active profiles and 500 emails a month. Omnisend's free plan covers 250 contacts, 500 emails a month and 500 web push notifications a month.