01
Polish in three tones
Polish, polite, soft. The line before your cursor is rewritten in the tone you pick.
AI keyboard for Android
The AI keyboard that gets Korean right
One button on the line you are writing. Spelling, spacing and tone are fixed in place. Not what you wanted? One backspace undoes it.
Coming soon
Store links will appear here at launch.
내일 회의 몇시에 하는지 알려주실수 있나요
Polite
K'ai
내일 회의가 몇 시인지 알려 주실 수 있을까요?
Features
Two things, done best
02
One-line replies
Copy a message you received and tap Reply for a one-line suggestion. It goes in only when you tap it, and nothing is sent on its own.
03
One backspace to undo
If you do not like the edit, a single backspace brings your original back.
04
In every app
Messenger, email, comments. It is a keyboard, so it works everywhere you type.
How it works
How to use it
- 1
Turn it on
Choose K'ai as your keyboard in settings. That's it.
- 2
Type, then tap
Write as usual, then tap a tone on the strip above the keys.
- 3
Check the result
The fixed line drops in place. If not, backspace.
Who it suits
- People who rewrite a message to their manager three times
- People who always mix up tricky Korean spellings
- People who get stuck on how to start a group-chat reply
- People who want AI polishing without the newest Galaxy phone
Only the line you tap
- What you type is handled on the phone. Only when you tap is that one line (up to 300 characters) sent.
- The server does not store your text or use it for AI training.
- AI is switched off in password, number and email fields.
FAQ
Is it free?
A few uses a day will be free, with a Pro subscription for heavier use.
Does everything I type go to a server?
No. Only the line you tap Polish or Reply on is sent, and it is discarded as soon as the result comes back.
How is it different from Grammarly?
Grammarly's keyboard is English-only. K'ai focuses on Korean spelling, spacing and tone.
Is it on iPhone?
K'ai is an Android keyboard. A Google Play link will appear on this page when it is live.
Before you send, tap once
Once it launches, you can get it right here.
Coming soon
Store links will appear here at launch.