MailStack
← All comparisons
marketing email + template builder

MailStack vs Mailchimp

Mailchimp is the best-known marketing-email and template tool. MailStack brings the same visual builder ergonomics together with a real transactional API — and prices on usage instead of contact-count tiers.

Pricing model
MailStack
3,000 emails/mo free, then $0.40 / 1,000 — usage-only, no subscription
Mailchimp
Contact-count tiers; transactional via paid Mandrill blocks
Charged by contacts
MailStack
No — list size never affects your bill
Mailchimp
Yes — price scales with audience size
Transactional API
MailStack
Native POST /v1/emails
Mailchimp
Mandrill add-on (separate product/billing)
Template builder
MailStack
Visual builder, versioned, render via templateId
Mailchimp
Drag-and-drop campaign builder
Developer ergonomics
MailStack
Bearer ms_live_ keys, cURL/Node/.NET snippets
Mailchimp
Marketing-first; API is secondary

What Mailchimp is great at

Mailchimp’s audience management, campaign editor, and template gallery are polished and approachable for marketers. Its automations and reporting are deep, and the brand is trusted by small businesses.

Why teams choose MailStack

Mailchimp prices by audience size and locks transactional sending behind a separate Mandrill add-on. Developers who need both a clean send API and a builder end up stitching two products together. MailStack unifies them: the same visual template builder feeds a first-class transactional API, and you’re billed only on emails sent — your contact list size is irrelevant.

Pricing in a sentence

Mailchimp charges by contact-count tiers (and Mandrill blocks for transactional); MailStack charges per email sent, full stop.

Try MailStack free

3,000 emails a month on us — no card required. Switch from Mailchimp in an afternoon.

Read the quickstart → See pricing