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Email · Head-to-head

Mailchimp vs Substack

Side-by-side review of Mailchimp and Substack for one-person businesses. Pricing, ratings, pros, cons, and which to pick.

Quick verdict

Pick Substack.

Substack edges ahead in our review (3.5/5 vs 2.5/5). The right pick for most one-person businesses unless you specifically need Mailchimp's strengths.

Benchmarks

compareDetail.benchmarksHeading

Five axes that matter for a one-person business. Each score is editorial, 1–10, higher is better. A tool that maxes every axis doesn't exist; the shape of the chart is the signal.

246810PriceSolo fitLearning curveLock-inSupport
MailchimpSubstack
Price4.08.0
Solo fit5.09.0
Learning curve5.010.0
Lock-in4.04.0
Support6.05.0
Mailchimp★★★★★

The grandfather of email marketing. Still works, still has the integrations, but the pricing has gotten steep and the UX has not kept up.

The case for

  • Brand recognition: every CMS, e-commerce platform, and form builder integrates with it
  • Free tier covers up to 500 contacts, fine for testing
  • Lots of templates and a familiar editor if you used it years ago

The case against

  • Pricing climbs aggressively past 500 contacts: 1,500 contacts is roughly $30/mo Essentials
  • Counts unsubscribed contacts toward your tier limit (yes, really)
  • UX feels dated next to Beehiiv, Kit, or even Substack
Substack★★★★

The easiest way to start a newsletter. Also the most expensive long-term, since they take 10% of every paid subscription forever.

The case for

  • Genuinely the simplest way to start: write, hit send, you have a newsletter
  • Built-in network: Substack Reader can recommend your work to readers of similar publications
  • No upfront cost, no subscriber tiers, just write

The case against

  • Takes 10% of every paid subscription, forever, on top of Stripe fees
  • Limited customisation: every Substack looks like a Substack
  • Lock-in is real: exporting subscribers is allowed but their address book is on Substack servers

At a glance

MailchimpSubstack
Rating2.5/53.5/5
PricingFree up to 500 contacts; Essentials from $13/mo; Standard from $20/moFree to start. Substack takes 10% of paid subscription revenue + Stripe fees
Free tierYesYes
Best forTiny lists with no growth ambition, or businesses already deeply integrated everywhere with Mailchimp who would rather not migrate.Writers starting a newsletter today who want to publish in 10 minutes and figure the rest out later.
Last reviewedMarch 19, 2026April 30, 2026

Bottom line

Mailchimp

Tiny lists with no growth ambition, or businesses already deeply integrated everywhere with Mailchimp who would rather not migrate.

Bottom line

Substack

Writers starting a newsletter today who want to publish in 10 minutes and figure the rest out later.

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Reviews are based on hands-on use of each tool. Affiliate relationships do not affect rankings. Get Stack Smart is reader-supported.