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
Voice to draft: dictate replies and receive structured responses
Screenshot reading: snap an email anywhere on screen to reply without copy and paste
Tone selection: warm, firm, apologetic or concise tones learned from past emails
Adaptive templates: save and tailor best replies to each new message
60+ language support: read, reply and translate across languages
Local encryption: AES-256 encrypted database on user's machine with optional app lock
House voice for new starters: import sent mail to learn team's established voice
Multi-mailbox import: supports Outlook, Gmail, Apple Mail and 7 other email providers
Two-device account access: one account works on up to two computers simultaneously
No API or inbox connection: drafts created locally, user retains full control over sending
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
Drafts learned from your own voice: AI learns tone and style from your past emails, not generic templates
Local-first privacy: all email stored encrypted on your machine, nothing uploaded to servers
Never trains on your emails: messages never used for AI training, not stored on company servers
Works without sending capability: no inbox connection means no security risk or automation errors
Supports team onboarding: new hires sound like the business by lunchtime on day one
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