Free: $0, includes one project with up to three documents, unlimited notes and version history, imported sources, and 50,000 lifetime starter AI tokens. Pro monthly: $9.99/month with 1,000,000 AI tokens per month. Pro annual: $69.99/year with 1,000,000 AI tokens per month.
Not given
Key features
AI writing operations scoped to a passage (expand, outline, strengthen, summarize, critique, tone, plot, rewrite)
Long-form projects keeping notes, sources, documents, versions together
Voice Profile keeps whole manuscripts in consistent voice
Audio notes transcribed into the project
Long-form editor with outline navigation, word goals, focus mode, and local style statistics
AI-powered content generation
Multilingual support
Amazon KDP-ready formatting
Automatic structure and outline generation
Quick book generation
Intuitive user interface
Multiple book type support
Export in DOCX and PDF formats
What makes it different
All writing and organization features work without AI; AI is optional
AI operates on your notes and sources, not a blank prompt, keeping context across sessions
Text never used to train AI models; all writing remains private
Every AI result appears as a suggestion beside the draft; nothing rewrites in place without approval
One project holds multiple chapters with notes and sources; suitable for book-length manuscripts
Create complete books in minutes without writing a single word
AI handles everything from idea to polished manuscript
Full commercial rights to generated content
Instantly ready for KDP and other platforms
Scale production to generate multiple titles quickly
STRUT
BookScribi