CharacterKey - AI Keyboard

In-app purchases
3.8
62 reviews
1K+
Downloads
Content rating
Teen
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About this app

CharacterKey - Your AI-Powered Custom Keyboard

Transform your typing with the world's first AI character keyboard. CharacterKey replaces your standard keyboard with an intelligent typing companion that writes in any voice, style, or language you choose.

50+ PRE-MADE CHARACTERS
Choose from ready-to-use personalities:
- Brain Rot - Literally cooked fr
- Captain Obvious - States the obvious hilariously
- Corporate Speak - Professional business talk
- Crown & Quill - Elegant Bri-ish prose
- Darth Breather - Dark side communication
- Pirate Speak - Arrr, matey!
- Shakespeare - Classic poetic writing
- Surfer Speak - Chill beach vibes
- Yo Duh - Strong with the dialect, I am
...and 40+ more!

CREATE UNLIMITED CUSTOM CHARACTERS
Build your own AI personalities right from your keyboard:
- Name it anything
- Choose an emoji
- Write a custom prompt
- Save and reuse forever
- Infinite possibilities - no waiting for updates
- Turn any idea into a reusable writing tool

WORKS IN EVERY APP
No app switching. No copy-paste. Just install once and use everywhere: Messages, Instagram, X (Twitter), Discord, Reddit, Snapchat, Tinder, Gmail, WhatsApp, TikTok, Facebook, Telegram, Bumble, YouTube, Notes - literally ANY app with a text field.

MULTILINGUAL SUPPORT (20+ LANGUAGES)
- Built-in translator - Instant translation between languages
- Write in character voices in your native language
- Perfect for global communication

POWERFUL KEYBOARD FEATURES
- Rewrite - Transform any text into character voice
- Reply - AI generates contextual responses in character
- Grammar Fix - Instant corrections as you type
- Works with highlighted text OR clipboard
- One-tap to apply changes
- 10+ productivity characters for professional formatting

PERFECT FOR
- Dating apps - Stand out with witty, unique messages
- Social media - Create engaging, viral-worthy content
- Professional emails - Polish your communication instantly
- Group chats - Be the most entertaining friend
- Creative writing - Access instant character voices
- Everyday typing - Fix grammar and elevate your writing

PRIVACY FIRST
Your custom keyboard, your private data:
- We DON'T track your typing
- We DON'T store your messages
- We DON'T sell your data
- Full keyboard permissions are only used for AI features
- Your conversations stay 100% private

HOW IT WORKS
1. Download CharacterKey
2. Enable CharacterKey keyboard in your device Settings
3. Switch to CharacterKey in any app (just like switching to emoji keyboard)
4. Select a character or create your own
5. Tap "Rewrite" or "Reply" and watch the magic happen

No app switching. No copy-paste. Just pure AI-powered typing magic.

Terms of Use (EULA): https://characterkey.app/eula.html
Privacy Policy: https://characterkey.app/privacy.html
Updated on
Feb 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

3.6
59 reviews
Anna Firmalino
January 12, 2026
This keyboard application is great but.. there are worse and missing, things setting for managing the keyboard size and the theme, keyword size & more.. and option to hide the tools.. anyways it will be fire if u just use ads on premium stuff. because not all people are gonna pay just for a special keyboard feature.
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Kamrul Islam
January 23, 2026
not a bad keyboard especially the translator feature however it has these few flaws that make it impossible to type on firstly typing is horrible horrible keeps making errors that I don't normal don't make may due to the keyboard being so small in height also horrible often stays stuck on a long press of a key and doesn't go away until you press the key. Shakespeare would say "ay, form may glitter bright, yet heart doth fail without the swift of function’s truth. Pray, let both pair in harmony"
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Desire W
November 17, 2025
Arrr, this app be elegant, aye, but the UI could use a sharper edge, savvy? Aye, a sleeker deck would sail smoother, and aye, a finer interface could chart a tidier course. Shiver me timbers, there’s treasure in a better look and feel.
4 people found this review helpful
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