Rewrite or reply to your messages before you send them, choosing from safer, funnier, or custom tones
AI studio and reader for books, comics, and printables with optional cloud sync and AI audiobooks
Stage
Startup
Not given
Founded
Not given
Not given
Based in
Not given
Not given
Pricing model
Freemium
Freemium
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.
$9 per book, $9.99 per comic, $5 per printables set, $9 per blog post. Writing and reading are free; prices apply only to download files.
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
AI-powered writing in 26 formats across 48 languages
Interview-based planning and chapter writing
Bite-sized card reading view for focus
Bionic Reading to improve reading speed
RSS and Atom feed integration
Offline reading with no ads
Optional free cloud sync across devices
AI audiobooks with word-by-word highlighting
Export highlights and notes as Markdown
Multiple output formats including EPUB and PDF
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
Finished, publishable files not drafts in one studio session
All output is real—no mockups shown
Line-edited writing that reads like a human wrote it
No credits or subscriptions needed to write
AI disclosure and copyright flexibility for Amazon publishing
tono
Neubook