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2026-11-12 02:52 Tool comparisons

Omnisend vs Klaviyo (2027): Budget E-commerce Email and SMS or Data-Heavy Segmentation? Prices, Free Plans, SMS and the Best Klaviyo Alternative for Small Stores

Omnisend vs Klaviyo: Budget E-commerce Email and SMS or Data-Heavy Segmentation for a Growing Store?

Omnisend and Klaviyo are both built for online stores, and both connect to Shopify, WooCommerce, BigCommerce and Wix. The difference is depth and price. Omnisend is e-commerce email, SMS and web push with ready-made workflows, a free plan with 24/7 support and low entry prices, aimed at small stores that want automation without a data team. Klaviyo calls itself "the autonomous B2C CRM": email, SMS, WhatsApp, RCS and push on top of its own customer data platform, with real-time segments, predictive analytics and AI agents, aimed at stores that want to use every piece of customer data. Whether you search for Omnisend vs Klaviyo or Klaviyo vs Omnisend, this guide compares plans, prices, SMS, segmentation and support as both official pricing pages showed them on 12 November 2026.
Quick answer: pick Omnisend if you run a small Shopify or WooCommerce store on a budget: Standard covers 500 contacts and 6,000 emails a month for $11.20 a month for the first 3 months paid upfront, then $16 a month (our calculation from the $48 list price), and every plan, the free one included, gets 24/7 support. Pick Klaviyo if your store is growing and you want to segment by any data, predict churn and lifetime value and connect a data warehouse later: Email costs $20 a month for 500 active profiles and 5,000 emails. Both free plans give 250 contacts and 500 emails a month, so you can test both before you pay.
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Omnisend vs Klaviyo at a Glance

OmnisendKlaviyo
What it isE-commerce email, SMS and web push marketing with pre-built workflowsB2C CRM: email, SMS, WhatsApp, RCS and push on its own customer data platform, with AI agents
Free plan250 contacts, 500 emails and 500 web push a month; no credit card250 active profiles, 500 emails a month, $5 of mobile messages and $5 of Composer AI usage
Entry paid plan (500 contacts)Standard $11.20 a month for 3 months paid upfront (-30%), then $16; 6,000 emails a monthEmail $20 a month; 5,000 emails a month
Next planPro $41.30 a month for 3 months upfront, then $59; unlimited emails (fair use), SMSMarketing $25 a month ($1 for the first month, limited time); social marketing, reviews, Customer Hub
SMSPro only; from $0.007 per SMS, by country and volume; MMS US and CanadaAdd-on on paid plans; calculator: 1,000 US messages for $15 a month
SegmentationBehaviour, purchase history and engagement; AI segmentsReal-time segments on all-time data, predictive churn risk, CLV and next order, RFM, Segments AI
Data platformNot offeredKlaviyo Data Platform; Advanced KDP (custom objects, warehouse sync) on request
Support24/7 on every plan, free migration in about 5 daysFree plan: email support for the first 60 days
Best forSmall stores that want email + SMS automation cheaplyGrowing stores with lots of customer data and several channels
Sources: omnisend.com (homepage and pricing page) and klaviyo.com (pricing, SMS, segmentation and data platform pages), checked 12 November 2026. Both pricing pages showed US dollars and a list of 251-500 contacts by default.

Omnisend and Klaviyo in 2027: What Each One Does

Omnisend: email, SMS and push automation for small online stores

Omnisend sells itself as "email and SMS marketing so good, it's boring": pre-built workflows for welcome, abandoned cart and post-purchase messages, email and SMS campaigns, forms and popups, segments by behaviour, purchase history and engagement, and reports on sales. Omnisend AI writes copy, picks send times and builds segments for you to approve. It connects to Shopify, Shopify Plus, BigCommerce, WordPress, WooCommerce, Wix, Shoplazza and Ecwid, and Omnisend says 150,000 brands use it.
  • Free, $0: no credit card; 500 emails, 500 web push notifications and 250 contacts a month. The FAQ says it includes pre-built e-commerce workflows, segmentation, A/B testing, pop-ups, landing pages and 24/7 support.
  • Standard: $11.20 a month on the default "pay 3 months upfront (save 30%)" view, shown as $33.60 today instead of $48.00, then billed monthly; 6,000 emails a month (12 times your list), 500 contacts, unlimited web push and Omnisend Agent with 2 AI tools. Paid plans add custom workflows and Forms AI.
  • Pro: $41.30 a month ($123.90 instead of $177.00 for 3 months); unlimited emails under a fair use policy, 2,500 contacts, unlimited web push, Agent Pro with 5 AI tools and SMS from $0.007 per message. The page's default SMS estimate is $50 a month for 5,882 messages ($0.0085 each).
  • Extras: free migration of lists, segments, flows and templates in about 5 days; a dedicated account expert once you spend $400 a month or more; card payments only (Visa, Mastercard, American Express).
Billing note: the Omnisend pricing page opens with the 3-months-upfront discount switched on. After those 3 months you pay the list price monthly: our calculation from the totals shown is $16 a month for Standard and $59 for Pro at this list size. Prices rise with your list size.
Best for: founders with a small Shopify or WooCommerce store who want welcome, cart and post-purchase emails, some SMS and fast help, without paying for a data platform they will not use yet.
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Klaviyo: a B2C CRM with its own customer data platform

Klaviyo describes itself as "the autonomous B2C CRM". Email, SMS, WhatsApp, RCS and mobile push run on the Klaviyo Data Platform, which unifies behavioural, transactional and engagement data in real time. On top sit AI agents: Composer plans and builds campaigns and flows for you to approve, and Customer Agent answers shoppers' questions, processes returns and edits orders. Klaviyo lists more than 400 integrations, including Shopify, WooCommerce, BigCommerce, Adobe Commerce (Magento), Salesforce Commerce Cloud and Wix, and says more than 200,000 brands use it.
  • Free plan, $0: up to 250 active profiles and 500 emails a month, $5 of mobile messages and $5 of Composer usage a month, social marketing for 250 profiles, reviews for 50 orders, Customer Hub, 10 Customer Agent resolutions and 10 Helpdesk tickets. No A/B testing; email support for the first 60 days.
  • Email, $20 a month: 500 active profiles, 5,000 emails a month, A/B testing and everything in the free plan.
  • Marketing, $25 a month: the recommended plan, with a limited-time offer of $1 for the first month for up to 5,000 active profiles; adds social marketing for 500 profiles, reviews with no order limit and Customer Hub for 500 profiles.
  • SMS and MMS: an add-on on Email and Marketing. Klaviyo's SMS calculator shows 1,000 messages a month in the United States (toll free) for $15.
  • Custom: over 150,000 active profiles, with volume pricing, data warehouse sync and advanced data management; talk to sales.
Segmentation and data: Klaviyo's segmentation updates segments in real time on all-time data, with no look-back limit, and adds predictive analytics such as churn risk, customer lifetime value and expected next order, RFM groupings and Segments AI, which builds a segment from a plain-language description. Stores with complex data can add Advanced KDP: custom objects for subscriptions or bookings, data clean-up without code, custom functions and sync with Snowflake, BigQuery or Databricks. Its price is not on the pricing page.
Best for: growing stores that already collect lots of customer data and want to act on it across email, SMS and other channels, and teams ready to spend time on segments.
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Is Omnisend a Good Klaviyo Alternative?

For a small store, yes. Omnisend's own pricing page promises savings of "up to 35% vs. Klaviyo"; that is the vendor's claim. Our like-for-like check at 500 contacts: Omnisend Standard costs $16 a month at list price ($11.20 for the first 3 months paid upfront) for 6,000 emails, while Klaviyo Email costs $20 for 5,000 emails. Both free plans are the same size (250 contacts, 500 emails). Omnisend also includes A/B testing and 24/7 support on the free plan and moves your lists, flows and templates over for free. Where Omnisend is not a full alternative: Klaviyo's predictive segments (churn risk, lifetime value, next order), its data platform and warehouse sync, and channels such as WhatsApp and RCS. If you need those, Klaviyo is worth the higher bill.

Omnisend vs Klaviyo: Feature by Feature

  • Automation: both have ready-made e-commerce flows (welcome, abandoned cart, post-purchase). Omnisend keeps them simple; Klaviyo lets Composer build and tune them from your data.
  • SMS: Omnisend sells SMS on Pro at volume rates from $0.007 (US high volume); Klaviyo sells it as an add-on on any paid plan and gives $5 of messages on the free plan.
  • Segmentation: Klaviyo is deeper, with all-time data, predictive fields and AI-built segments. Omnisend segments by behaviour, purchase history and engagement.
  • Other channels: Omnisend covers email, SMS, MMS (US and Canada) and web push. Klaviyo adds WhatsApp, RCS, mobile app push, reviews and a helpdesk.
  • Support: Omnisend offers 24/7 support on every plan. Klaviyo's free plan gets email support for 60 days; check the support level of paid plans before you buy.
  • Switching: Omnisend moves your account for free in about 5 days. Both have free plans, so you can run them side by side first.

What Changed Since the Old Version of This Comparison

  • Klaviyo plans renamed: the old "Email" and "Email and SMS" plans are now Email ($20) and Marketing ($25), with SMS as an add-on, plus AI agents (Composer, Customer Agent) and a helpdesk.
  • Free plans matched: both now give 250 contacts and 500 emails a month.
  • Omnisend SMS: new SMS pricing from $0.007 per message on Pro; Omnisend Agent AI tools on paid plans.
  • Removed: an unsourced "81% of small businesses" statistic, a vague claim that Klaviyo restricts live chat, and links to third-party comparison blogs, replaced by both vendors' own pages.

Which One Should You Choose?

  • New store, tight budget: Omnisend. Free to start, Standard at $16 a month list price for 500 contacts, and 24/7 help.
  • You want SMS from day one: compare Omnisend Pro (SMS from $0.007 per message) with Klaviyo plus the SMS add-on ($15 for 1,000 US messages) at your list size.
  • You have thousands of customers and want to predict who will buy again: Klaviyo, for predictive segments and its data platform.
  • You sell on several channels and want WhatsApp, reviews or a helpdesk in one place: Klaviyo.
  • Unsure: run both free plans for a month with the same welcome flow and keep the one your team actually uses.
Other Omnisend match-ups: Omnisend vs Brevo, Omnisend vs SendGrid and Marketo vs Omnisend. Other Klaviyo match-ups: Klaviyo vs Constant Contact. More email tool comparisons: Brevo vs MailerLite, Brevo vs SendGrid, ActiveCampaign vs Brevo, Mailchimp vs ActiveCampaign, Mailchimp vs Constant Contact for small business, Constant Contact vs MailerLite and HubSpot vs ActiveCampaign.

How Founders Use Omnisend, Klaviyo and Other Email Tools

  1. Start with three flows. Welcome, abandoned cart and post-purchase cover most early e-commerce revenue from email; both tools ship them ready-made.
  2. Keep costs low until the list grows. Our lists of free Mailchimp alternatives and open-source Mailchimp alternatives show other free options, and Mailchimp vs Mailgun covers sending transactional email.
  3. Add SMS with a plan. Get consent first and test one SMS flow; our SMS marketing strategy for startups explains how.
  4. Grow the list with content. The F/MS AI SEO Tool turns your keywords into articles built to rank on Google and to be cited by ChatGPT and Perplexity, so more visitors reach your sign-up form.
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FAQ: Omnisend vs Klaviyo

What is the main difference between Omnisend and Klaviyo?

Omnisend is simple, lower-cost e-commerce email, SMS and web push automation with 24/7 support on every plan. Klaviyo is a B2C CRM with its own customer data platform, predictive segments, AI agents and more channels, at a higher price.

Is Omnisend a good Klaviyo alternative?

For small stores, yes: at 500 contacts Omnisend Standard is $16 a month at list price for 6,000 emails, against $20 for 5,000 emails on Klaviyo Email, with 24/7 support and free migration. Omnisend itself claims savings of up to 35%. It lacks Klaviyo's predictive analytics and data platform.

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How much does Omnisend cost?

On 12 November 2026, for 251-500 contacts, Omnisend showed Free at $0, Standard at $11.20 a month and Pro at $41.30 a month for the first 3 months paid upfront (30% off), then billed monthly at list price ($16 and $59 by our calculation).

How much does Klaviyo cost?

For 500 active profiles, Klaviyo Email costs $20 a month and Marketing $25 a month (the first month $1 under a limited-time offer). SMS is an add-on: 1,000 US messages cost $15 a month in Klaviyo's calculator. Custom plans start above 150,000 active profiles.

Do Omnisend and Klaviyo have free plans?

Yes, and they are the same size: 250 contacts (Klaviyo says active profiles) and 500 emails a month. Omnisend's free plan includes A/B testing and 24/7 support; Klaviyo's includes $5 of mobile messages and $5 of AI usage, with email support for 60 days.

Which is better for SMS marketing?

It depends on volume and country. Omnisend includes SMS on Pro at rates from $0.007 per message for high US volumes; Klaviyo adds SMS to any paid plan, with 1,000 US messages for $15. Compare both calculators at your own list size.

Which is better for segmentation and customer data?

Klaviyo. It segments on all-time data in real time, predicts churn risk, lifetime value and next order, builds segments from a description with AI and can sync with data warehouses through Advanced KDP.

Do both work with Shopify and WooCommerce?

Yes. Both list Shopify, WooCommerce, BigCommerce and Wix. Omnisend also lists Shopify Plus, WordPress, Shoplazza and Ecwid; Klaviyo lists Adobe Commerce (Magento), Salesforce Commerce Cloud and 400+ integrations in total.

Can I switch from Klaviyo to Omnisend?

Yes. Omnisend offers free migration of lists, segments, flows and templates, done in about 5 days with read access to your account.

About the Author

Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. Throughout her startup experience she has applied for multiple startup grants at the EU level, in the Netherlands and Malta, and her startups received quite a few of those. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.