Omnisend vs Klaviyo

Written head to head: Klaviyo vs Omnisend, with when to choose each side.

Compared on	Omnisend Free plan · from $16/mo VisitRemove	Klaviyo Free plan · from $20/mo VisitRemove
What it is	Email, SMS and push marketing for ecommerce stores, with a free plan for 250 contacts and 24/7 support	B2C CRM for ecommerce email and SMS, billed by active profiles, with a free plan and the Composer AI agent
Free plan	500 emails a month to up to 250 contacts; 500 web push notifications; the FAQ says the free plan includes the features of paid plans, such as automation, segmentation and forms, within those limits; 24/7 live chat and email support	Up to 250 active profiles and 500 email sends a month; $5 of mobile messages and $5 of Composer usage a month; web forms, templates, segmentation, flows and reporting; Klaviyo logo stays on emails; email support for the first 60 days only. Sending is blocked once either limit is exceeded until you upgrade.
Cheapest paid plan	$16/mo (Standard)Omnisend pricing	$20/mo (Email)Klaviyo pricing
What it covers	For up to 500 contacts; email sends are 12x the list size (6,000 a month at 500 contacts); Essential AI (Forms AI and Reports AI). No annual plan is listed; paying 3 months upfront saves 30%. Subscribers and non-subscribers who received automated messages are billed; unsubscribed contacts are not.	For 500 active profiles with 5,000 emails a month. The price rises with active profiles, and accounts move to a profile-compliant tier automatically as they grow. A limited-time offer takes $19 off the first month at 500 profiles. No annual price is listed.
Free trial	None stated	None stated
Platforms	Web, API	Web, API
Integrations (vendor's figure)	305+ pre-built integrations including Shopify, Shopify Plus, BigCommerce and WooCommerce	350+ integrations including Shopify, WooCommerce, BigCommerce, Wix, ChatGPT and Claude
Open source	No	No
Good for	Shopify and BigCommerce stores automating abandoned cart and post-purchase emails Ecommerce brands combining email, SMS and push in one workflow Stores moving from another email platform with a free migration	Ecommerce brands on Shopify or WooCommerce running behavior-triggered email flows Combining email, SMS and WhatsApp marketing on one customer profile Using an AI agent to draft and launch campaigns from store data
Watch out for	The free plan allows only 500 emails a month to 250 contacts Standard caps sends at 12x the list size Pro starts at the 2,500-contact tier; the pricing page sells SMS credits on Pro and does not describe SMS pricing for Standard	The free plan stops at 250 active profiles and 500 email sends a month Generative AI, predictive analytics and logo removal need a paid plan SMS, Composer usage beyond the free allowance, Customer Hub, Social and Reviews cost extra
Made by	Omnisend, UAB	Klaviyo, Inc.

Entry prices are the cheapest paid plan, as each vendor publishes it; “What it covers” says what that price is per (a user, a channel, a brand, a number of contacts). The sources are listed on each tool's page.

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