MarTech comparison
Mailchimp vs Klaviyo
Klaviyo wins for ecommerce brands that live on product and browse data. Mailchimp wins for general lists, newsletters, and teams that do not need a commerce CDP.
Pricing and plans reviewed August 27, 2026. Confirm live numbers on each vendor’s pricing page before you buy.
The quick verdict
Winner
Klaviyo
“Klaviyo wins for e-commerce brands that need product-aware email/SMS; Mailchimp remains simpler for general newsletters.”
Mailchimp vs Klaviyo is only a fair fight if you sell products online. Klaviyo is a commerce messaging platform: profiles, catalog, predicted LTV, flows that fire on cart, browse, and purchase. Mailchimp is a general email marketing product that added ecommerce features. If more than half of email revenue should come from store events, Klaviyo is the default. If you send a brand newsletter to a mixed audience, Mailchimp is simpler and often cheaper at small lists.
Pricing looks close at 1,000 contacts and diverges in structure. Klaviyo bills active profiles — anyone you could still message — from free (250 profiles, 500 emails/month) to about $30/month at 1,000 and $150/month at 10,000 on the Email plan. Mailchimp is contact-tiered with Free under 250, Standard commonly starting around $20/month on promotions, and Premium from a few hundred dollars. SMS is an add-on on both; Klaviyo’s Email + SMS plans start around $35/month at the first paid profile band.
StackClash gives Klaviyo the verdict for ecommerce. Mailchimp remains the easier first ESP. Do not buy Klaviyo to send a weekly newsletter to 800 subscribers. Do not stay on Mailchimp if your Shopify store’s money is in flows Klaviyo has as templates.
Scorecard
Scores are 1–10 for a typical mid-market buyer. They are editorial, not lab benchmarks.
| Round | Mailchimp | Klaviyo | Why |
|---|---|---|---|
| Ecommerce data model | 6 | 10 | Klaviyo treats the catalog and profile as the product. Mailchimp connects stores; it does not think like a CDP. |
| Flows / automations | 6 | 9 | Mailchimp flows improved. Klaviyo’s prebuilt revenue flows are still the category standard. |
| SMS + email on one profile | 6 | 9 | Both sell SMS credits. Klaviyo’s combined profile is what brands actually use day to day. |
| Ease for non-retail teams | 9 | 5 | Mailchimp is friendlier for agencies, nonprofits, and mixed B2B lists. |
| Price at 1k contacts | 8 | 8 | Similar entry. Klaviyo pulls ahead as a revenue tool; Mailchimp as a simple ESP. |
| Price at 10k+ profiles | 7 | 6 | Klaviyo’s profile meter gets expensive; suppress cold profiles or you pay for ghosts. |
How they actually differ
Klaviyo’s unit of value is an active profile with store events attached. Abandoned checkout, browse abandonment, post-purchase cross-sell, and winback are not “automations you might build.” They are the product. Predictive analytics (expected date of next order, churn risk) sit on those profiles. That is why DTC operators talk about Klaviyo the way sales teams talk about Salesforce: it becomes the customer database for marketing.
Mailchimp’s unit of value is a campaign and an audience. Templates, a brand kit, Intuit Assist, and a huge template/ecosystem make it the default “we need email” tool. Ecommerce integrations exist. They do not rewrite the product around SKUs. If your store is a side channel to a services business, that is a feature. If the store is the business, it is a ceiling.
SMS is the 2026 wedge. Klaviyo sells Email + SMS as a first-class pair on one profile, with flows that mix channels. Mailchimp SMS is an add-on in select markets with monthly credits that expire. Both work. Klaviyo is where ecommerce teams expect the channel to live.
Pricing snapshot (August 27, 2026)
USD monthly list prices, August 2026. Klaviyo Email plan by active profile. Mailchimp Standard/Premium are promotional and contact-tiered — the public page often shows intro rates.
| Scenario | Mailchimp | Klaviyo |
|---|---|---|
| Free | Under 250 contacts; sending pauses if you exceed limits | 250 active profiles, 500 emails/mo, small SMS credit (~$5) |
| ~500 contacts | Standard often ~$20/mo on intro offers | Email ~$20/mo; Email + SMS from ~$35/mo |
| ~1,000 contacts | Standard, contact-tiered (commonly low tens / month) | Email ~$30/mo |
| ~10,000 contacts | Standard scales; Premium intro from ~$350/mo at small lists | Email ~$150/mo; SMS extra via credits |
| ~50,000 contacts | Standard/Premium — check live calculator | Email ~$720/mo |
- • Klaviyo bills active (contactable) profiles, not just people you emailed this month. Suppress or delete cold profiles to control the bill.
- • Mailchimp overages apply if you blow contact or send caps; SMS credits expire monthly.
- • Klaviyo send caps are roughly 10× profiles on paid Email — rarely the constraint compared with profile count.
- • Neither price includes a full SMS program at scale. Model credits separately.
Choose Mailchimp if
- →You send newsletters or campaigns to a mixed audience, not only buyers
- →You want the simplest ESP and do not need catalog-aware personalization
- →You are under ~250 contacts and the free plan is enough
- →Your store is not the primary revenue engine
Choose Klaviyo if
- →You run Shopify, WooCommerce, or similar and email should print money
- →You need browse/cart/purchase flows as the default, not a project
- →Email and SMS should share one profile and one flow canvas
- →You will invest in list hygiene so you are not paying for inactive profiles
The ecommerce data gap
Klaviyo syncs products, variants, collections, placed orders, fulfilled orders, and checkout started events as first-class objects. A flow can say “bought product X, not product Y, LTV over $200, last open 14 days.” Mailchimp can filter audiences and connect a store. The difference shows up in the third month, when a merchandiser wants a campaign that is actually about the catalog.
If you do not have a catalog — consultants, newsletters, local services — Klaviyo’s data model is overhead. Mailchimp’s audience-and-tag model matches how those teams think.
Flows vs campaigns
Most Klaviyo revenue is automated. Welcome, checkout, post-purchase, browse, sunset. Campaigns still matter for launches and drops; they are not the engine. Mailchimp still leans campaign-first for a large share of its customer base, with flows as a paid-plan feature set that varies by Standard vs Premium.
Teams leaving Mailchimp for Klaviyo almost always cite “we were still building the automations Shopify apps already expected Klaviyo to have.” That is the switching story in one sentence.
Deliverability and brand tools
Mailchimp’s brand recognition with recipients is a mixed blessing (footer chrome, reputation of a huge shared base). Klaviyo is what serious stores run, which helps if you configure authentication correctly. Both require SPF/DKIM/DMARC work you should not skip.
Mailchimp wins templates and a consumer-grade editor. Klaviyo’s editor is fine; brands that care about pixel-level design still bring in an agency. Do not pick Mailchimp because the templates look nicer if the data model is wrong.
When to stay, when to switch
Stay on Mailchimp if ecommerce is <30% of email’s job and nobody is asking for predicted LTV. Switch to Klaviyo when a connected store is the list, flows should carry the P&L, and you are willing to treat profiles as a cost of goods.
Switching is a project: historical revenue attribution will not look the same, and you should rebuild flows rather than “import automations.” Klaviyo and several agencies will help. Budget two to six weeks, not a weekend.
Feature matchup
| Feature | Mailchimp | Klaviyo |
|---|---|---|
| E-commerce data model (orders, LTV, products) | — | ✓ |
| Beginner-friendly email builder | ✓ | ✓ |
| Advanced segmentation on purchase behavior | — | ✓ |
| Built-in SMS with shared profiles | — | ✓ |
| Lower entry cost for small lists | ✓ | — |
| Predictive analytics (churn, CLV) | — | ✓ |
| Broad non-commerce use cases | ✓ | — |
Mailchimp
Pros
- ✓Easy setup for basic campaigns and automations
- ✓Friendly pricing for small audiences
- ✓Solid templates and brand toolkit
Cons
- ✕Weaker product/order-level personalization than commerce specialists
- ✕Segmentation depth lags for serious DTC brands
Klaviyo
Pros
- ✓Best-in-class Shopify/WooCommerce event data
- ✓Flows that react to browse, cart, and purchase signals
- ✓Unified email + SMS profiles
Cons
- ✕Pricing scales with contacts and usage
- ✕Overkill for simple monthly newsletters
Frequently asked questions
- Is Klaviyo better than Mailchimp for Shopify?
- Yes for almost every Shopify store that wants email and SMS to drive revenue. Mailchimp is acceptable for a brand newsletter on top of a small catalog.
- Why is Klaviyo more expensive at scale?
- It prices every active profile. Large, unclean lists get expensive. Hygiene (suppress unengaged) is part of the operating model, not optional.
- Does Mailchimp have abandoned cart?
- Yes, with a connected store. It is not the same depth as Klaviyo’s checkout and browse event model.
- Can I use both?
- Technically. Practically you will split attribution and annoy subscribers. Pick one as the marketing ESP.
- Which has a better free plan?
- Both cap around 250 contacts. Klaviyo’s free tier includes a little SMS and real automations. Mailchimp’s free tier is a familiar on-ramp. Neither is a long-term plan for a growing store.