Rewrite or reply to your messages before you send them, choosing from safer, funnier, or custom tones
Voice-first AI ghostwriter for storytellers who never wanted to be writers
Stage
Startup
Not given
Founded
Not given
Not given
Based in
Not given
Not given
Pricing model
Freemium
Paid
Pricing
Free: $0 forever for on-device rewrites with unlimited rewrites, no account required. Pro: $3.99/month or $39.99/year; new subscribers get a 14-day free trial and can cancel anytime.
Credit packs: Notebook ($2.99, 3 credits), Manuscript ($9.99, 11 credits), Novella ($19.99, 25 credits), Novel ($49.99, 65 credits). One credit equals approximately 1,000 finished words. Credits never expire.
Key features
Safer tone that clarifies and reduces hostility
Funnier tone that changes register
Custom tone by typing your own instructions
Cloud rewrites for Pro subscribers
How I Sound feature to apply your voice to rewrites
Support for longer drafts on Pro
Works in iPhone keyboard and as an app
Voice-to-prose conversion with real-time transcription
Story Bible that tracks characters, places, and plot threads
Talk to your characters for story development
Editorial questions and contradiction detection
Multiple export formats: EPUB, Word, Markdown, and print-ready HTML
Story Map showing character relationships and connections
Type or speak your story, or upload recordings
Finish Book wizard with cover designer
Multi-language support for writing in any language
What makes it different
Never sends messages automatically—you always copy and send manually
Drafts never used to train models; privacy-first design
Free on-device rewrites with no daily limits or quotas
Works directly in iPhone keyboard for seamless workflow
Built specifically for storytellers without writing experience, not writers
Maintains user's original voice and creative control throughout the writing process
Story Bible automatically ensures consistency across entire manuscript
tono
CharmWriter