What? - AI Rephraser
AI Writing in Any App
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Polish and rephrase any text in one tap with WHAT?. Fix grammar, rewrite tone, translate, summarize — 14 actions + 12 specialty packs. Use it everywhere you type.
What? - AI writing that works everywhere you type.
Tap any text and polish it in one move. What? puts Claude AI behind a system keyboard, the share sheet, and a home-screen widget — so you can fix, rewrite, translate, or summarize anything you've written, without leaving the app you're in.
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WHAT IT DOES
• Fix Grammar — one tap, no rewrites
• Rephrase, Translate (20 languages)
• Make Professional, Make Casual
• Shorten, Expand, Simplify
• Improve Flow, Make Punchy, More Assertive
• Remove Hedging — kill "I think" and "maybe"
• Analyze Tone — get an honest read on any draft
• Sarcasm — when subtlety is required
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12 SPECIALTY PACKS
Focused tools for specific situations:
Writer's · Lawyer's · Marketer's · Coach's
Dating · Email · Student · Comedy
Funny · Recovery · International · Social
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EVERYWHERE YOU TYPE
• Keyboard extension — works inside every app
• Share extension — process text from Safari, Mail, Notes, anywhere
• Home-screen widget — quick action shortcuts
• History — your last 50 transformations, synced via iCloud
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PLANS
• Subscribed — 14 actions + any 3 specialty packs
3 days free, then $6.99/month or $34.99/year
• BYOK — bring your own Anthropic API key. All 12 packs, custom prompts, no monthly caps from us.
3 days free, then $1.99/month or $9.99/year
• Action Packs sold individually: $2.99–$4.99
• Complete Bundle (all 12 packs): $14.99 — save 63%
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PRIVACY FIRST
• Your text is sent only to Anthropic for processing — never stored on our servers.
• BYOK keys live in iOS Keychain, encrypted at rest, biometric-gated to reveal.
• History syncs via your own iCloud account — not ours.
• Localized in 6 languages: English · Deutsch · Español · Français · 日本語 · 中文简体
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Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in Settings.
Privacy Policy: https://myrcbox.com/what/#privacy-policy
Terms of Use: https://myrcbox.com/what/#terms-of-use
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Culture picker for Match Cultural Context — pick from 25 countries; text adapts to that culture's style without changing language
• International pack respects input language — Japanese Business / German Direct / French Polite now shift the style, not the language
• Pack action name in result title — "Japanese Business Style" instead of "Result"
• Paste at cursor — paste icon inserts at the cursor or replaces selection (no more clobbering)
• Bigger main input box — 200pt minimum, grows to 420pt with internal scroll
• Text selection fixed — copy/paste/long-press loupe work properly (gesture conflict removed)
• Coach suggestions match input language
• Onboarding share-extension slide — Use What? from any app
• Stronger Humanize prompt — also strips "resonate", "holistic", "foster", "unprecedented", "multifaceted", "seamless", "robust"
• Dozens of new translations — status view, BYOK, paywall subtitles, error messages, bundle pitch fully localized in all 6 languages
The developer, Sylvain Lafrance, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sylvain Lafrance
- Size
- 7.3 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Japanese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- What - BYOK Subscription Monthly $1.99
- What - BYOK Subscription Yearly $14.99
- What - Subscription Yearly $49.99
- What - Subscription Monthly $7.99
- Copyright
- © 2026, Sylvain Lafrance