Newsletter & analytics
Substack
Substack is a newsletter publishing platform with no flat platform fee for free publishing; it instead takes a percentage of revenue from publications that enable paid subscriptions, per its official help center.
Best for
Publishers who want to start a free newsletter with no subscription fee, and only pay a revenue share once they turn on paid subscriptions, per Substack's own help center article.
Free tier
Publishing and sending a free newsletter carries no Substack platform fee.
Limits to know
Substack charges no flat monthly fee; its published fee structure is described in the official help-center article linked below (as of the date above).
Plans and prices
As of Sept 29, 2026, per the vendor's official pricing page.
| Plan | Price | What is included |
|---|---|---|
| Free publishing | $0 | No platform fee for publishing and sending a free newsletter. |
| Paid subscriptions | 10% Substack fee, plus Stripe processing fees (2.9% + $0.30 per transaction, plus 0.7% billing fee on recurring charges) | Applies once a publication enables paid subscriber tiers. |
| Custom domain | $50 one-time | One-time fee to connect a custom domain. |
Prices change often — check the vendor's page before you buy.