Omnisend vs Klaviyo: E-commerce Email Compared 2026

Our pick for most online stores

For most online stores with fewer than 2,500 contacts, Omnisend is the better starting point. Its Standard plan lists at $11.2 a month for up to 500 contacts and 6,000 emails, and its Pro plan lists at $41.3 a month for 2,500 contacts with unlimited emails and SMS. Klaviyo's comparable email plan starts at $20 a month for 500 profiles and reaches $60 a month at 2,500 profiles. If you want email, SMS and web push in one bill without requesting a quote, Omnisend fits that brief more directly. If your store depends on fine-grained segmentation and detailed customer reporting, Klaviyo is the stronger choice even at a higher monthly price, and the sections below explain where that trade-off makes sense.

Both platforms are built for e-commerce, both offer a free plan, and both are sold by the number of contacts or profiles you keep. The differences show up in three places: what each plan includes at the price you see, how SMS is priced, and how much the platform asks of your team once it is running. This guide covers all three, with prices taken from each vendor's pricing page as checked on 7 October 2026.

Quick comparison

The table below summarises the two platforms at the level most store owners need first. Prices are monthly unless noted. Plan limits change from time to time, so confirm the current numbers on each pricing page before you sign up.

How each platform is priced

Omnisend prices by contact count, and each plan carries a monthly email allowance. The Free plan covers 250 contacts with 500 emails and 500 web push notifications a month, at $0. The Standard plan covers 500 contacts and 6,000 emails a month. The Pro plan covers 2,500 contacts with unlimited monthly emails and SMS, with SMS charged per message from $0.007 and varying by country and volume.

Klaviyo prices its email plans by active profile. The Email plan is $20 a month for 500 profiles, $30 for 1,000, $60 for 2,500, $100 for 5,000, $150 for 10,000 and $400 for 25,000, all billed monthly. Klaviyo sells SMS through separate Email+SMS plans at the same profile tiers, and those prices are not published, so you need to request a quote. Its free plan covers 250 active profiles, 500 email sends a month and $5 of mobile messages.

When you compare the two, use the email-only prices for Klaviyo and the Pro price for Omnisend, because Omnisend's Pro plan already includes SMS. Comparing Omnisend's Pro plan with Klaviyo's Email plan without accounting for SMS understates the cost of SMS on Klaviyo, because that cost sits in a quoted Email+SMS plan.

Cost at realistic list sizes

The table below shows the monthly price at five list sizes. Where a vendor does not publish a price for a tier, the cell says "pricing on request". Omnisend's published tiers stop at 2,500 contacts in the pricing information used here, so larger Omnisend lists need a quote or the current pricing page.

Two details in this table change the real cost. The first is the Standard email allowance. At 500 contacts, Standard includes 6,000 emails a month, which is an average of 12 emails per contact. A store that sends 15 emails a month to its full list will exceed the allowance, so it should move to a higher plan or cut the volume. The second is the Omnisend promotional rate. The $11.2 figure is shown with a 30% off offer for the first three months, paid upfront. Work out the renewal price from the pricing page before you assume that rate will continue.

Klaviyo's price rises in steps as the profile count grows. Going from 2,500 profiles to 10,000 adds $90 a month on the Email plan, and going from 10,000 to 25,000 adds $250 a month. A store with a growing list should model the next tier before it reaches the limit, because the step can be larger than the growth in revenue it funds.

Omnisend: strengths and limits for online stores

Omnisend is built around shop-based marketing. Its strongest point is that email, SMS and web push notifications sit in one plan, and its pre-built workflows cover the common cases for an online shop: welcome sequences for new subscribers, abandoned cart reminders, post-purchase follow-ups and win-back messages. A small team that does not have a marketing specialist can get those flows running without building each step from scratch.

The free plan is useful for testing. With 250 contacts, 500 emails and 500 web push notifications a month, a new store can run its welcome flow, send a few campaigns and see whether web push brings in traffic before paying for anything. The free plan is limited, so most stores will move to Standard once their list grows past 250 contacts.

Omnisend's limits are mainly about depth. Its reporting is good enough for most campaign decisions, but teams that want to model customer lifetime value or build complex predictive segments will find it less flexible than the alternatives. The product also has a smaller partner ecosystem than Klaviyo, so if your store depends on a specific third-party app, check that connector before you move. Larger lists also need a quote above 2,500 contacts, which makes budgeting less predictable than on a fully published price list.

Price: Free at $0 for 250 contacts; Standard at $11.2/mo for 500 contacts and 6,000 emails (promotional offer shown); Pro at $41.3/mo for 2,500 contacts. Full details are on the Omnisend pricing page.

Klaviyo: strengths and limits for online stores

Klaviyo is the platform many larger e-commerce teams choose when they want to treat customer data as the centre of their marketing. Its segmentation tools let you build audiences from purchase history, browsing behaviour and engagement, and those segments can drive flows and campaigns across the shop. Its reporting is detailed enough that analysts and marketing managers can work with it directly, which is why it suits stores that already have a data-minded team.

The cost of that depth is complexity. Klaviyo asks more of the person who sets it up. Flows, segments and reporting all have more options, so a store without someone who knows the platform can spend weeks getting its first automated sequences right. Stores that plan to use it well should budget time for setup, not just the monthly fee.

On price, Klaviyo's published email plans start at $20 a month for 500 profiles and climb to $400 a month at 25,000 profiles. That makes the email-only comparison with Omnisend clear: Klaviyo costs more at every list size shown above. The SMS side is less clear, because Email+SMS plans are priced on request. If SMS is central to your plan, ask for a quote at your profile count before you compare the two platforms on cost.

Klaviyo's free plan covers 250 active profiles, 500 email sends a month and $5 of mobile messages. It lets you test the segmentation and flow builder on a real list, which is the best way to decide whether the extra depth is worth the price for your store.

Price: Free for 250 active profiles; Email plan at $20/mo for 500 profiles, $60/mo for 2,500, $150/mo for 10,000, $400/mo for 25,000, all billed monthly. Email+SMS plans are priced on request. Full details are on the Klaviyo pricing page.

Decision guide: which platform fits your store

The decision usually comes down to a handful of questions. The table below turns them into a direct recommendation, so you can see which trade-off matters most for your business.

How to choose between them

Start with your list size and sending pattern, not with feature lists. Count the contacts you have now and the number you expect in twelve months, then count how many emails you send to the whole list each month. Those two numbers decide which Omnisend plan fits and which Klaviyo tier you will pay for. A store with 500 contacts that mails the full list twice a week will hit Omnisend's Standard email allowance quickly, so it should look at Pro.

Next, decide how much you need from SMS. If SMS is a small part of your plan, Omnisend's per-message pricing keeps it simple. If SMS is a major channel, request a Klaviyo Email+SMS quote and compare the total against Omnisend Pro. Do not compare Omnisend Pro with Klaviyo's Email plan alone and assume the gap is the whole difference.

Finally, look at who will run the platform. A store with a marketer who wants to build complex segments and read detailed reports will get more from Klaviyo, and the higher price is easier to justify. A store run by an operations lead or a founder who wants to launch welcome, cart and post-purchase flows quickly will usually be happier with Omnisend. Use each free plan to build one real flow before you commit, because the interface and the learning curve matter more than any comparison table.

Setup and migration checklist

If you are moving from one platform to the other, or launching for the first time, the steps below keep the process controlled. Most migration problems come from consent records, sending domains and flows that were never rebuilt, not from the platform itself.

Keep one copy of your old platform's suppression list and campaign history after you leave it. Some regulators and customers expect you to show when and how consent was obtained, and you will need those records if a question comes up later.

Workflow advice for online stores

Whichever platform you pick, the first three flows matter most. A welcome flow should go out within minutes of a sign-up and explain what the shop sells, without stacking discounts on people who have not bought yet. An abandoned cart flow should send a reminder while the product is still in the shopper's mind, and it works best with one clear message rather than a long series. A post-purchase flow should confirm the order, explain delivery and then ask for a review or suggest a related product once the customer has the item.

Segmentation makes these flows more relevant. Separate people who have bought from people who have only browsed, and treat repeat buyers differently from first-time buyers. Omnisend's pre-built workflows can cover the basic splits quickly. Klaviyo's segmentation lets you go further, for example by building audiences around product categories or purchase frequency. Start with two or three segments that you can explain in one sentence, and add more once you can see which ones move revenue.

Keep an eye on frequency. Sending more emails does not automatically mean more sales, and a list that receives too many messages will unsubscribe or stop opening. Set a maximum number of marketing emails per person per week, and check it in the platform's reports after the first month.

Common mistakes when comparing these platforms

The most common mistake is comparing the starting price and ignoring the plan you will actually need. A store that starts on a small plan and then grows past its contact limit can pay more in the second year than it would have paid on a larger plan from the start. Model the next two tiers, not only today's list.

The second mistake is ignoring SMS and web push costs. On Omnisend, SMS is charged per message on the Pro plan, so a large SMS campaign has a real cost that scales with volume. On Klaviyo, SMS needs an Email+SMS plan that you must request as a quote. Work out the expected monthly message count before you assume SMS is included.

The third mistake is treating feature lists as equal. A feature that appears on both pricing pages can work very differently in practice. Test the segment builder, the flow editor and the reporting view with your own list before you rely on them.

Final verdict

Omnisend is the better choice for most online stores that want a low entry price, SMS and web push under one plan, and workflows that a small team can launch quickly. Its Standard plan is inexpensive for a 500-contact list, and its Pro plan gives a clear monthly price up to 2,500 contacts. Its weak points are the email allowance on Standard, the promotional pricing to check at renewal, and the lack of published prices above 2,500 contacts.

Klaviyo is the better choice for stores that will use detailed segmentation and reporting every week and have someone who can build that work. Its email plan prices are published up to 25,000 profiles, which makes large-list budgeting easier. Its costs are higher at each list size shown, its SMS pricing requires a quote, and its learning curve is steeper.

Run the free plan of each platform on a real list for two weeks before you decide. Build one welcome flow and one cart reminder in each, then compare how long setup took and how clear the results are. The cheaper plan is only the better value if the flows it lets you run bring in the revenue you expect.