At a glance

ReadMe Notion
Best for API-first companies that want a full developer hub with usage metrics Teams wanting docs, wikis, and knowledge bases in one place
Starting price $99/mo $8/user/mo
Free tier
Open source
Free tier available
Open source
AI Assist
API Explorer
Custom Branding
Databases
OpenAPI Import
Templates
Usage Metrics
User Management
Wikis

ReadMe

Strengths

  • Personalized docs showing users their own API keys
  • Built-in API explorer for testing endpoints live
  • Usage metrics showing which endpoints developers actually call
  • Auto-generates docs from OpenAPI specifications

Weaknesses

  • Pricing starts at $99/mo which is steep for small teams
  • Opinionated layout with limited design customization
  • Better suited for API docs than general documentation
  • Learning curve for advanced customization features

Notion

Strengths

  • Includes Wikis as a core feature, purpose-built for documentation workflows
  • Databases turn notes into structured data with views, filters, and relations
  • Free for personal use — generous enough for most small teams to get real work done
  • Includes templates alongside the core feature set — fewer separate tools needed

Weaknesses

  • Free plan exists but key features are locked behind the paid upgrade
  • Fewer built-in features means you may need additional tools to cover gaps
  • Ecosystem of third-party integrations is smaller than the market leaders in documentation
  • Mobile experience lags behind the desktop version in features and polish

The bottom line

Pricing: Both tools offer free tiers, so you can test each before committing. ReadMe's free plan: Free for 1 project with basic features. Notion's free plan: Free for personal use. When you outgrow the free tier, Notion is the cheaper option at $8/user/mo vs. $99/mo for ReadMe — roughly 1137% less.

Feature gaps: ReadMe offers API Explorer, Custom Branding and OpenAPI Import that Notion lacks. Notion brings AI Assist, Databases and Templates that ReadMe does not have.

Team fit: ReadMe is geared toward mid-size teams teams, while Notion is aimed at any size teams. Pick the one that matches where your team is today and where it is headed — migrating tools later is always painful.

Where each tool shines: ReadMe's biggest strengths are: personalized docs showing users their own api keys. built-in api explorer for testing endpoints live. Notion's biggest strengths are: includes wikis as a core feature, purpose-built for documentation workflows. databases turn notes into structured data with views, filters, and relations.

Watch out for: With ReadMe, users commonly note that pricing starts at $99/mo which is steep for small teams. With Notion, the main complaint is that free plan exists but key features are locked behind the paid upgrade.

Choose ReadMe if...

  • You need a tool built for api-first companies that want a full developer hub with usage metrics
  • You specifically need API Explorer and Custom Branding
  • You care about built-in api explorer for testing endpoints live
  • Your team size fits the mid-size teams profile ReadMe is designed for
  • The free tier works for you: free for 1 project with basic features

Choose Notion if...

  • Your profile matches its sweet spot: teams wanting docs, wikis, and knowledge bases in one place
  • You want to save on per-user costs — Notion is $91.00/user/mo cheaper
  • You specifically need AI Assist and Databases
  • You care about databases turn notes into structured data with views, filters, and relations
  • Your team size fits the any size profile Notion is designed for

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