Keylio: AI Keyboard & Writer
Translate, Reply, Grammar Fix
Only for iPhone
Free · In‑App Purchases
iPhone
AI keyboard that translates, adjusts tone, fixes grammar, and writes replies in 30 languages. Works in every app.
Stop switching between apps just to translate a message or fix your grammar. Keylio is an AI-powered keyboard that translates, adjusts tone, fixes grammar, and generates
smart replies, right where you type. No copy-paste. No app switching.
TRANSLATE AS YOU TYPE
• Instant AI translation across 30 languages
• Auto-detect the source language or choose manually
• Translate directly inside any app — no need to open a separate translator
CHANGE YOUR TONE
• Rewrite any message as Friendly, Professional, Funny, or Casual
• Create your own custom tones to match your personal writing style
• Switch between a work email and a casual chat without overthinking every word
FIX AND IMPROVE YOUR WRITING
• Correct grammar and spelling mistakes instantly
• Rewrite, shorten, expand, or simplify any text
• Five writing modes in one keyboard, your personal proofreader and writing assistant
SMART REPLIES
• AI reads the conversation and generates a context-aware reply for you
• Choose from 6 styles: Friendly, Professional, Positive, Decline, Funny, or Casual
• Never stare at a blank screen wondering what to say again
WORKS EVERYWHERE YOU TYPE
Keylio is a keyboard extension that works inside every app on your iPhone. Use it across messaging, social media, email, notes, and anywhere else you type. One keyboard
for all your conversations.
HOW IT WORKS
1. Add Keylio in your keyboard settings
2. Switch to Keylio using the globe key
3. Tap Translate, Tone, Writing, or Reply and let AI handle the rest
DESIGNED FOR YOUR PRIVACY
Your text is processed through a secure connection and is never stored permanently. Your conversations stay yours.
Keylio helps you write faster, communicate more clearly, and sound natural in any language. Whether you are drafting a professional email, chatting with friends, or
replying to someone in a language you are still learning. Keylio makes every word count.
Download Keylio and start typing smarter.
Privacy Policy:
https://docs.google.com/document/d/18UYzIiBexFZ60aMi4dpYrxnJFHEmh_zr-jmeTE1oKzc
Terms of Use:
https://docs.google.com/document/d/11aSTKKTZixmlAr7ZXcIbPiqSMMpLsNDkRu-OvQU50tk
Ratings & Reviews
The developer, Mert Ozge, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mert Ozge
- Size
- 21.2 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Subscription $39.99
- 3-Days Trial $4.99
- Copyright
- © Mert Ozge 2026