Klaviyo vs Mailchimp: 6 Differences for Small Stores

Klaviyo and Mailchimp are two of the most common email platforms for small online stores, and the comparison usually starts with a feature checklist that makes them look nearly identical. Both send campaigns, both run automated flows, both connect to Shopify. The real differences sit underneath: how each one bills you, how deeply it understands store data, and how much work it takes to run well.

This guide compares the two on the points that actually change the decision for a small store, so you can pick the one that fits how you sell. It does not quote prices, because both companies change them often; instead it explains how each one charges, so you can check the current numbers yourself.

What is the core difference between Klaviyo and Mailchimp?

Klaviyo was built for ecommerce. Its segments, flows, and reporting are designed around what shoppers browse, add to cart, and buy, and it leans heavily on store integrations like Shopify. Mailchimp started as a general email tool for all kinds of businesses and has added ecommerce features over time. In practice, that means Klaviyo usually offers more depth for store-specific automation, while Mailchimp often feels simpler and more general-purpose.

Neither is automatically better. The right choice depends on how much of your revenue you expect from automated, behavior-driven email versus simple newsletters and announcements.

How do Klaviyo and Mailchimp compare?

1. How they bill. Both price by list size, but they count differently. Klaviyo’s billing documentation bases plans on active profiles, meaning any profile that can be emailed. Mailchimp’s plan documentation bases plans on the number of contacts you store, with a monthly send limit tied to that number.
2. Free plans. Both offer a free plan for small lists. Mailchimp’s help center lists its free plan at 250 contacts and 500 sends a month, with a daily send limit. Klaviyo also offers a free tier for a small number of profiles. Free plans on both are best for testing, not for running a growing store.
3. Ecommerce data and segments. Klaviyo is designed to segment on store behavior, such as products viewed, order history, and predicted next purchase. Mailchimp supports ecommerce segments too, generally with less depth.
4. Automated flows. Both support welcome, abandoned cart, and post-purchase automations. Stores that want many branching, behavior-driven flows tend to find Klaviyo more flexible.
5. Ease of getting started. Mailchimp is often quicker for simple newsletters. Klaviyo rewards the time you spend setting it up properly.
6. SMS and other channels. Both have added text messaging options, each with its own billing. Check current terms on each company’s pricing page before you plan around them.

Which one costs more?

That depends on your list, not on a headline price. Because both platforms charge by list size, the biggest cost driver is how many people you keep on the list and how each platform counts them. A store with a large list full of long-inactive subscribers can pay noticeably more than it needs to on either platform.

To compare fairly, take your actual numbers, total contacts, how many are active, and how many emails you send each month, and run them through each company’s current pricing page. Then factor in the cost of the features you would actually use, such as text messaging or advanced reporting. Keeping your list clean lowers the bill on both; our guide to email list cleaning shows how.

Which is better for Shopify stores?

Both connect to Shopify, so either can work. Klaviyo is especially common among Shopify stores because its segments and flows are built around store events like viewed product, started checkout, and placed order. If you plan to rely on automated flows for a meaningful share of revenue, that depth is usually the deciding factor. If you mainly send a monthly newsletter and the occasional promotion, Mailchimp’s simpler setup may be all you need.

Which is better for a store just starting out?

If your list is small and your plans are simple, start with whichever one you will actually use well. A platform with fewer features that you run consistently will outperform a powerful one you never finish setting up. The most important early work is the same on either: a welcome series, abandoned checkout emails, and clear consent at signup. Our welcome series guide and abandoned cart vs. checkout guide cover both.

How hard is it to switch from Mailchimp to Klaviyo?

Switching is common and manageable, but plan it rather than rushing it. The steps are similar in either direction:

1. Export your contacts with their consent status, so you only move people who agreed to hear from you.
2. Rebuild your key flows in the new platform, starting with welcome and abandoned checkout, before turning off the old ones.
3. Authenticate your sending domain on the new platform, so your emails keep reaching the inbox.
4. Warm up sending gradually, starting with your most engaged subscribers, rather than blasting the whole list on day one.
5. Run both briefly, then cancel the old platform once the new flows are working.

What stays the same whichever platform you choose?

The rules that decide whether your email reaches the inbox apply on both. Google’s sender guidelines and Yahoo’s sender requirements ask bulk senders to authenticate their domain, keep spam complaints below 0.3 percent, and support one-click unsubscribe. The FTC’s CAN-SPAM guide sets the legal floor, including a working opt-out and your postal address. The platform makes these easier to follow; it does not follow them for you.

Strategy matters more than the tool. Our ecommerce email marketing guide covers the flows, campaigns, and segmentation that work on either platform, and our Email Programs service builds and runs them for you.

Frequently asked questions about Klaviyo vs Mailchimp

Is Klaviyo worth it for a small store?

It can be, if you plan to use its ecommerce segments and automated flows. If you mainly send simple newsletters, a simpler platform may serve you just as well for less effort.

Can I use Mailchimp with Shopify?

Yes. Mailchimp connects to Shopify. Check the current integration details on Mailchimp’s site, since store connections change over time.

Do both platforms charge for unsubscribed contacts?

Each counts your list in its own way, and the rules can change. Read each company’s current billing documentation, and archive or clean contacts you no longer email to keep costs down.

Which has better deliverability?

Deliverability depends far more on your list quality, consent, authentication, and content than on the platform. A clean, engaged list performs well on either.

Final thoughts on Klaviyo vs Mailchimp

Klaviyo suits stores that want deep, behavior-driven automation built on store data; Mailchimp suits stores that want a simpler, general-purpose tool. Compare them with your own list numbers and the features you will really use, then commit to running one well. If you would like help choosing and setting up yours, book a call with one of our hive specialists today to plan your email program.