Email and document writers get 10 free rewrites a day, then Advanced at $6.99 a month.
Kenning's take
What it does
An AI writing tool from AI21 Labs that suggests other ways to phrase a sentence, phrase or single word while keeping the meaning, and can change the tone from casual to formal. It also fixes spelling and grammar and can generate text from a prompt; on iPhone it works as a keyboard inside other apps.
- rewrite suggestions for sentences, phrases and words
- tone changes between casual and formal
- spelling and grammar corrections
- AI text generation from a prompt
- iPhone keyboard that works inside other apps
- web editor
Who it suits. People who write emails and documents in English and want quick rewording suggestions.
Key facts
- Category
- Writing, emails & letters
- Made by
- AI21 Labs, Inc.
- Works on
- Web, iPhone
- In the UK
- Yes
- Free plan
- Free Basic plan: 10 rewrites and AI suggestions a day, 3 AI generations a month, unlimited spelling and grammar
Pricing
| Plan | Price | Billed |
|---|---|---|
| Advanced (billed annually) | $4.89 | month |
| Unlimited (billed annually) | $6.99 | month |
| Premium (UK App Store) | £24.99 | month |
| Premium (UK App Store) | £119.99 | year |
Ratings
FAQ
Is Wordtune free?
Yes, the Basic plan is free with 10 rewrites a day and unlimited spelling and grammar checks. Advanced is $4.89 a month and Unlimited $6.99 a month when billed annually.
Does Wordtune work on iPhone?
Yes. The Wordtune AI Writing Keyboard is on the UK App Store.
Who makes Wordtune?
AI21 Labs, Inc.
Facts from the maker's own pages and the sources listed. Checked 2026-10-11.
Similar tools
Apple Writing Tools (Write with Siri)
Free proofreading and rewriting built into recent iPhones, iPads and Macs, now run through Siri.
QuillBot
Rewords, summarises and grammar-checks text, with a free checker that has no word cap.
Wispr Flow
Dictation that turns rambling speech into tidy written text in any app, on phone or computer.
Grammarly
Checks spelling, grammar and tone in almost every app, on a phone keyboard or a computer.