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Convert vs Substack

Side-by-side plans, pricing, and feature gates for Convert and Substack, verified . Convert is primarily a/b testing; Substack is primarily email marketing.

Convert

Starting price
$299/mo
Free plan
No
Free trial
15 days
Plans
3
Full Convert profile →

Substack

Starting price
Free
Free plan
Yes
Free trial
·
Plans
1
Full Substack profile →

Plans side by side

Every published plan from each vendor, with the headline monthly anchor price. Some prices scale with subscriber count or seats; full detail lives on each tool's page.

Convert

  • Growth
    $299/mo
  • Pro

    Most popular: $420/mo billed yearly

    $420/mo
  • Enterprise
    Custom

Substack

  • Standard

    Free to publish; 10% of paid subscription revenue

    Free

When Convert wins

  • Marketing and CRO teams running 5+ tests per month with budgets to match
  • Companies scaling out of free Optimize or VWO Free tier deprecations
  • Mid-market e-commerce running structured experimentation programs

Where Convert is the wrong fit

  • Small teams that can use PostHog feature flags and experiments for free
  • One-test-a-quarter buyers where cost-per-test is too high
  • Enterprises with Optimizely contracts where switching incentive is weak

When Substack wins

  • New writers with no list yet who want platform-driven discovery
  • Writers who would rather give 10% of revenue than pay a flat $20-100/month with no readers

Where Substack is the wrong fit

  • Established creators with a paid list above ~5,000 subscribers; the 10% share exceeds what Kit, Ghost, or beehiiv would charge in flat fees at that scale
  • Operators who want full control over deliverability, subscriber data, and migration optionality
  • Brands needing automations, segmentation, or marketing tooling

Common questions

Is Convert cheaper than Substack?
At the entry tier, Substack starts at Free versus Convert at $299/mo. Substack is cheaper at the entry. Pricing scales differently above that, so check the full plan grid.
Does Convert or Substack have a free plan?
Only Substack has a permanent free plan. Convert only offers a free trial.

Convert: https://www.convert.com/pricing/ · Substack: https://substack.com/going-paid

Last verified . Pricing changes between refreshes; confirm at the vendor before purchasing.