Free: $0 forever. Starter: $39 per month ($468 billed yearly). Growth: $99 per month ($1,188 billed yearly). Scale: $279 per month ($3,348 billed yearly). All paid plans include a 14-day free trial of Growth. Founding customers: 50% off first year on paid plans.
Free: 100 welcome credits. Plus: US$29/month with 1,000 credits per month. Pro: US$59/month with 4,000 credits per month. Max: US$99/month with 10,000 credits per month. Yearly option saves 2 months (one payment for 10 months of the monthly price).
Key features
Drafts help centre articles from code
Flags stale articles on merged pull requests
Generates changelog from merged PRs
Publishes API reference without OpenAPI spec
AI answers on help centre
Imports existing documentation
Integrates with Claude and Cursor via MCP
Links claims back to source code
Draft review before publishing
Write from documents, notes, talks, recordings, or ideas
Support for 100+ languages
Multiple input formats including PDF, Word, MP3, MP4
AI-powered chapter writing
Built-in editor with chat interface
Export in multiple formats: DOCX, EPUB, PDF, HTML, KDP pack
Cover and illustration generation
Specialized book skills for memoir, novel, biography
Unlimited web search for research
Unlimited book storage
What makes it different
Writes documentation directly from your code, not manual files
Keeps docs accurate by flagging stale articles on each merged PR
Captures real screenshots of your app rather than generic mockups
Generates API reference automatically without an OpenAPI spec
Works with apps built using no-code tools like Lovable, Bolt or v0
You retain full ownership and commercial rights to your finished book
Content not used to train AI models
Start writing with just a sentence or bring complete materials
Free tier includes 100 credits with no card required
All-in-one workspace from drafting through publication
Ellie Docs
Booova