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
Object removal prompts
Background editing and replacement
Portrait retouching workflows
Product photo editing guides
Short and detailed prompt pairs
Constraint-based editing instructions
Composite photo editing
Copy-and-paste prompt library
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
Task-focused prompt organization
Constrained prompts to reduce unwanted changes
Common failure modes explained
Practical editing examples with before and after
Independently maintained and transparent
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