Omnisend vs Klaviyo: email and SMS for Shopify stores
Two email and SMS platforms built around Shopify stores, compared on listed prices at six list sizes, what they bill for, SMS, support and what else you get.
Updated Nov 3, 2026Prices checked Nov 3, 2026
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Omnisend and Klaviyo both sell email and SMS marketing to online stores and both plug into Shopify. Each has a free plan for up to 250 contacts and 500 emails a month.
They differ on price per contact, on who counts as a billable contact, on how SMS is sold, on support for cheaper plans, and on what else they sell.
Prices below come from each vendor's pricing page and Shopify App Store listing on November 3, 2026. They're in USD, billed monthly, before introductory discounts.
Summary
| Omnisend | Klaviyo | |
|---|---|---|
| Free plan | 250 contacts, 500 emails/mo | 250 active profiles, 500 emails/mo |
| Paid email from | $16.00/mo (Standard, 500 contacts) | $20.00/mo (500 active profiles) |
| Billed on | Contacts you send to; unsubscribed ones not billed | Every profile that can be emailed |
| Email sends | 12× list on Standard; unlimited on Pro (fair use applies) | 10× profiles |
| SMS | Pro plan only, priced per message | Separate add-on, from $15.00/mo |
| Support | 24/7 chat and email on every plan | Paid plans: chat. Free: email for 60 days |
| Shopify App Store | 4.7 from 3,199 reviews | 4.7 from 3,429 reviews |
Omnisend
Free plan, paid from $16.00/mo
Email, SMS and web push for online stores, with 24/7 support on every plan and a free migration from Klaviyo.
Klaviyo
Free plan, paid from $20.00/mo
Email and SMS on one customer profile, plus reviews, a helpdesk, WhatsApp and an AI agent, sold as separate products.
Price at six list sizes
Both vendors price by list size. These are the monthly prices their pricing pages showed for each size:
| Contacts | Omnisend Standard / Pro | Klaviyo email |
|---|---|---|
| 500 | $16.00 / $59.00 | $20.00 |
| 2,500 | $44.00 / $59.00 | $60.00 |
| 5,000 | $81.00 / $90.00 | $100.00 |
| 10,000 | $132.00 / $150.00 | $150.00 |
| 25,000 | $282.00 / $400.00 | $400.00 |
| 50,000 | $413.00 / $715.00 | $720.00 |
Omnisend Standard came in 12% to 43% below Klaviyo's email plan at these sizes. Omnisend's own headline says "save up to 35%".
Standard isn't a like-for-like match, though. Klaviyo's email plan lists product recommendations, send-time optimization and predictive analytics. On Omnisend, product recommendations and send-time personalization come with Pro, or as add-ons on Standard from $5.00 a month each.
Pro starts at $59.00 for up to 2,500 contacts, so on a small list it costs more than Klaviyo email. From 5,000 contacts up, Pro was at or below Klaviyo's email price. Pro also lets you send SMS, which is charged per message on top. Omnisend takes 30% off the first three months if you pay for them upfront.
Klaviyo's email plan includes ten sends per profile per month. Its price climbs fast past 10,000 profiles: 10,000 was $150.00, 10,500 was $175.00 and 15,000 was $350.00. If your list is near 10,000, check the builder with your exact count.
SMS is billed on top at both vendors; see below.
Who counts as a billable contact
This decides which tier you land in, so it matters as much as the price per tier.
Omnisend's pricing page says you're billed for "subscribers and non-subscribers who received automated messages". Unsubscribed contacts aren't billed. If you go over the email limit on Free or Standard, Omnisend asks you to confirm before it upgrades the account.
Klaviyo bills on active profiles. Its help center defines them as any profile that can be emailed "regardless of consent status", including people added through checkout without subscribing. Suppressed profiles, which include email unsubscribes, leave the count once the suppression is processed. Klaviyo moves you to a larger plan at the end of a billing cycle when the count grows, and the plan doesn't move back down on its own when the count falls.
On either platform, contacts who never subscribed can raise the bill. Suppress or remove old and fake contacts on a schedule.
SMS
Omnisend sells SMS on Pro only, priced per message by country and monthly volume. For US numbers, its rate table runs from 0.9 cents a message (under $50.00 a month) down to 0.7 cents ($10,000.00 a month and up). MMS is available for US and Canada recipients.
Klaviyo sells SMS as its own product that you add to your plan. Its Shopify App Store listing shows SMS from $15.00 a month for up to 1,250 SMS/MMS credits, carrier fees included. Its pricing builder lists US toll-free SMS at 1 cent per send plus carrier fees.
At 500 contacts, email plus SMS comes to about $35.00 a month on Klaviyo. On Omnisend it's $59.00 for Pro plus whatever you send.
Klaviyo also sells WhatsApp and RCS messaging. Omnisend's pricing page doesn't mention either.
Support and migration
Omnisend offers 24/7 live chat and email support on every plan, including Free. Accounts spending $400.00 or more a month get an account expert.
Omnisend also migrates you for free. It says it moves lists, segments, flows and templates in up to five days after you give it read access to your old account.
Klaviyo's free plan includes email support for the first 60 days. After that, free accounts rely on the Help Center, Community and Academy. Its pricing FAQ lists chat with the support team, onboarding, a growth success team and agency partners as support options.
What else you get
Omnisend stays close to email and SMS. Every plan includes:
- web push notifications (500 a month on Free, unlimited on paid plans)
- Facebook Custom Audiences and Google Customer Match integrations
- an MCP connection for AI tools like ChatGPT and Claude
Pro adds advanced reporting, AI product recommendations, dynamic content and personalized send times.
Klaviyo sells more products on the same customer profile, some with a free allowance:
- product reviews, from $25.00 a month for 250 orders
- a helpdesk and a self-service Customer Hub
- social marketing
- Composer, an AI agent that analyzes performance and drafts campaigns and flows ($20.00 a month, with a smaller free allowance)
Which one to pick
Our take, based on what each vendor offers:
- Pick Omnisend if email cost is the main concern, you want live support on the free plan too, or you're leaving Klaviyo and want someone else to move the setup. Start on Standard. Move to Pro when you need SMS, product recommendations, or more than 12 sends per contact a month.
- Pick Klaviyo if you want reviews, helpdesk, SMS, WhatsApp and email on one customer profile, plan to use its AI agent, or already have flows and segments in it that work.
- Price your own list on both. Both builders take your exact contact count. Check who each would bill you for today, including contacts who never subscribed, before comparing totals.
Common questions
Is Omnisend cheaper than Klaviyo?
For email alone, yes at every list size we checked. Omnisend Standard was $16.00 a month at 500 contacts and $132.00 at 10,000, against $20.00 and $150.00 for Klaviyo's email plan. Standard leaves out some features Klaviyo's email plan lists, such as product recommendations and send-time optimization. If you also want SMS, Omnisend needs Pro (from $59.00 for up to 2,500 contacts) plus per-message charges, while Klaviyo's SMS starts at $15.00 a month on top of email.
Do contacts who never subscribed count toward the bill?
They can on both. Omnisend bills subscribers and non-subscribers who received automated messages; unsubscribed contacts aren't billed. Klaviyo bills every profile that can be emailed, regardless of consent status, including people added through checkout; suppressed profiles, which include email unsubscribes, drop out of the count. Klaviyo's plan also doesn't move down on its own when the count falls.
Can I send SMS on Omnisend Standard?
Omnisend's plan comparison marks SMS for the Pro plan only. On Klaviyo, SMS is a separate add-on; its Shopify App Store listing shows SMS from $15.00 a month for up to 1,250 credits, carrier fees included.
Will Omnisend move my Klaviyo setup for me?
Omnisend says it migrates lists, segments, flows and templates for free in up to five days once you give it read access to your account.
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