Mailchimp
Email marketing and automation platform for growing businesses
What it does
Mailchimp is email marketing and automation software, the tool most small businesses' first-ever email newsletter went out through. Campaigns, basic automation (welcome series, abandoned cart), landing pages, and a lightweight built-in CRM layer for audience management. It's been around long enough to be the default answer to "what should I use for email" for a huge share of small businesses, even as more automation-focused competitors (Klaviyo, ActiveCampaign) have pulled ahead on depth for specific use cases like e-commerce.
Free tier
Yes
Starts at
$13/mo
Setup
easy
Key features
Integrates with
Shopify, WooCommerce, WordPress, Salesforce, Zapier
Who this fits
- Small businesses and creators sending a regular newsletter or basic promotional campaigns
- E-commerce stores wanting native Shopify/WooCommerce integration with reasonably good out-of-box automation
- Nonprofits and small teams needing a simple, well-known tool with a real free tier to start on
- Agencies managing email for multiple small-business clients (the "managed" affiliate tier reflects this use case)
Who it does NOT fit
- E-commerce brands wanting deep automation and segmentation on purchase behavior — Klaviyo is purpose-built for this and generally wins the comparison
- B2B teams needing tight CRM + email + sales pipeline integration — HubSpot or ActiveCampaign fit better
- Anyone with a large list containing many old unsubscribed or inactive contacts — see the pricing gotcha below, this gets expensive fast
- Teams wanting fully transparent, predictable overage pricing — Mailchimp's overage rates for exceeding a plan's send/contact limits aren't clearly published up front
Pricing
Real gotchas
- Mailchimp counts subscribed, unsubscribed, AND non-subscribed contacts toward your paid contact limit unless you manually archive them — a list built up over years can have 20-40% dead weight quietly inflating the bill every month (Source: Retainful Mailchimp pricing breakdown, https://www.retainful.com/blog/mailchimp-pricing)
- A single contact who exists in two different audiences/lists counts TWICE toward the total contact count — a very common and expensive surprise for businesses running separate lists for different segments instead of using tags within one audience
- Overage rates for exceeding your plan's contact or send limit are not clearly published on Mailchimp's pricing page, making it hard to predict the exact cost of growth in advance — budget conservatively and check the account dashboard regularly
- Reddit and G2 reviews consistently mention price hikes and shrinking free-tier features as long-time users' top complaint, with a documented pattern of users switching to Klaviyo or Brevo after a price increase
- Hidden costs stack from transactional email, SMS add-ons, and custom domain purchases, which can push the real bill 20-40% above the sticker price for an active user
Integrations that matter
Otto’s take on this tool
Recommend Mailchimp when: the user is a small business or creator sending a straightforward newsletter or basic campaign, wants a well-known name with a real free tier, or runs a small e-commerce store not yet needing Klaviyo-level automation depth. Do NOT recommend for e-commerce brands serious about revenue-driving flows — Klaviyo wins that comparison directly. Always flag the contact-counting gotcha (unsubscribed contacts still bill, duplicate contacts across lists double-count) before estimating a client's real monthly cost — this is the single most common source of Mailchimp bill shock. Pairs with Shopify for e-commerce or a landing page tool for lead capture.
Affiliate disclosure: if you sign up through the link above, Ottomately may earn a referral commission at no cost to you. We only feature tools we have actually used or vetted through our recommendation engine.Partnership: 25% new / 5% managed via Direct.
Editor's curated reviews
1,501 reviews across TrustPilot - avg 2.6/5Curated by Otto from TrustPilot public reviews (fetched 2026-08-31). Mailchimp TrustPilot (1,501 reviews) is heavily bimodal (20% 5-star, 66% 1-star) with critical reviews clustering on billing surprises, deliverability delays, and support after the Intuit acquisition. G2 and Capterra were consulted for aggregate context and both trend meaningfully higher; the TrustPilot layer is where cancellation and billing pain surfaces. Not user-submitted on Ottomately.
“Customer service is very responsive! Very appreciated during these AI times.”
“It's great to be talking to a real person (not a bot) who really knows the system.”
“The customer service responded quickly, their advice was brief and it worked first time.”
“Mail delivery takes up to 15 minutes (not immediate), a deal breaker for email marketing.”
“Sudden billing increases, hidden pricing and an unresolved refund dispute regarding unexpected charges.”
“Paid for a plan, banned the next day, no refund and support completely ignores me.”
“Trying to send a final welcome email. Been going round for hours and hours and cannot set this up.”
“They updated their system in a way that changed my ability to add lists for tagging.”
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