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Head-to-head · Email marketing

Klaviyo vs Mailchimp

Klaviyo has deeper customer data and channel coverage; Mailchimp costs less to start and publishes clearer seat limits.

Klaviyo

6.5/10
VS

Mailchimp

5.7/10

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Short answer

Most buyers should pick Klaviyo.

Choose Klaviyo for ecommerce or B2C teams that need real-time customer profiles, email/SMS and broader channel coverage; its paid plans start at $20/month and scale with active profiles. Choose Mailchimp for a lower-cost start, a 250-contact free plan, or teams that want published seat allowances: Essentials starts at a promotional $13/month for 12 months. Mailchimp's listed prices are 12-month promotional rates, and month-to-month rates may be higher. Neither source publishes a direct learning-curve comparison.

01Side by side

KlaviyoMailchimp
Starting pricePaid from $20/month; profile-tiered, no annual discount listed$13/month Essentials promo, billed for 12 months
Free plan250 profiles; 500 emails/month; $5 monthly mobile messages250 contacts; 500 emails/month; no SMS
Best forB2C brands needing unified profiles and cross-channel messagingSmall businesses, ecommerce, nonprofits, and professional services
Core strengthReal-time customer data plus cross-channel messagingEmail/SMS campaigns, automation, and audience segmentation
Learning curveNot publishedNot published
Integrations/data400+ integrations; real-time behavioral, transactional, engagement dataReal-time behavioral data; integration count not published
Team/seat costsSeat limits not listed; price scales with active profiles1–unlimited seats, depending on plan
SupportFree email support lasts 60 days; enterprise sales contact24/7 email/chat on Essentials and Standard; Premium phone support

Choose Klaviyo if

  • Choose Klaviyo if your store needs unified behavioral and transaction data.
  • Choose Klaviyo if email, SMS, WhatsApp, RCS, and push belong together.
  • Choose Klaviyo if you can absorb profile-based pricing and add-ons.

Choose Mailchimp if

  • Choose Mailchimp if you need a free start capped at 250 contacts.
  • Choose Mailchimp if published seat limits matter to your team.
  • Choose Mailchimp if you want entry pricing below Klaviyo's $20 paid tier.

02Pricing compared

Klaviyo’s Free plan allows up to 250 active profiles, 500 email sends a month and $5 of mobile messages. Its paid Email plan starts at $20/month for 251–500 profiles; Email and SMS starts at $35/month for that profile tier, including 1,250 SMS/MMS credits. Both scale with usage, and Klaviyo lists no annual-billing discount.

Mailchimp also has a free tier capped at 250 contacts and 500 emails a month, with SMS excluded. Essentials is listed at a promotional $13/month for 12 months, with a 14-day trial. Standard starts at $20/month and Premium at $350/month; these are 12-month promotional rates, and month-to-month prices may be higher. Mailchimp’s free tier is cheaper at entry, while Klaviyo’s paid pricing is tied to active profiles and, for SMS, credit volume.

03Features and depth

Klaviyo is the broader customer-data and messaging option. Its Data Platform unifies behavioral, transactional and engagement data in real time, while profiles can support email, SMS, RCS, WhatsApp, mobile push and web events. The platform lists 400+ integrations. Composer can plan cross-channel campaigns for marketer approval, and Customer Agent handles support; the homepage claims it resolves 65% of support questions. Pricing lists Composer and Customer Agent as add-ons, starting at $20/month and $50/month respectively.

Mailchimp covers email and SMS campaigns, automations, behavioral audience data and AI-assisted marketing. Its Standard plan includes generative AI and up to 200 automation flows; Premium adds A/B and multivariate testing and predictive segmentation. Those are useful published capabilities, but its listed channel set is narrower than Klaviyo’s. Mailchimp’s free plan does not include SMS, and SMS is an add-on on paid plans. The practical split: Klaviyo emphasizes unified B2C data and channel breadth; Mailchimp offers campaign and automation tools with clearer published seat and audience allowances.

04Ease of use and learning curve

Neither product’s published material publishes a direct learning-curve comparison, so we wouldn’t call one definitively easier. The feature sets point to different kinds of setup: Klaviyo brings customer profiles, multiple messaging channels, integrations and AI agents into one platform. That breadth may mean more decisions to configure, especially if you add SMS or paid agents, but the sources don’t quantify setup time.

Mailchimp publishes simpler plan allowances to compare: Essentials includes three seats and audiences, while Standard includes five of each and up to 200 automation flows. Those caps make plan fit easier to inspect, not necessarily the interface easier to learn. If your priority is fewer channels and published seat limits, Mailchimp is the more straightforward starting point on paper. For broader B2C data and messaging, expect to evaluate Klaviyo’s added scope.

Questions people ask

Who does Klaviyo compete with?

Klaviyo competes for email and SMS marketing budgets, including against Mailchimp in this comparison. The published material also notes that ecommerce users on Reddit discuss moving toward Klaviyo and Omnisend, but it doesn’t provide a complete competitor list or market-share data.

Is Mailchimp safe to use?

The published product and pricing material doesn’t document Mailchimp’s security certifications, data-protection controls or incident history, so it can’t establish whether it meets your security requirements. Check Mailchimp’s current security and privacy documentation, then compare it with your organization’s vendor requirements before importing customer data.

What are the top 3 email marketing tools?

There isn’t enough evidence here to rank the top three email marketing tools. This comparison covers Klaviyo and Mailchimp, not a market-wide benchmark. Klaviyo fits teams seeking broader B2C data and channel coverage; Mailchimp offers a free 250-contact tier and published paid-plan seat allowances.

Which is cheaper, Mailchimp or Constant Contact?

The published pricing covers Mailchimp but not Constant Contact, so we can’t make a like-for-like price comparison. Mailchimp lists a free plan for up to 250 contacts and a promotional Essentials rate of $13/month for 12 months; its page warns that standard month-to-month rates may be higher.