Do I have to write the instruction in their language?

No. Write it in your own language and the reply comes out in theirs.

How is the reply language chosen?

By default it is the language the other person wrote in. You can change it in Settings.

Dotok teamPublished 2026-10-08

Written by the team that makes Dotok. Free options come first.

Instruction = what to say + tone + what to leave out. Those three are enough.
Dates, numbers and promises — write them exactly in the instruction.
Check the read-back in your language, and use [Again] or [Edit] if it’s off.

When an AI reply comes out wrong, the instruction was usually vague. Put in three things.

Put in	Example
What to say	“say I’ll send the quote by Friday morning”
Tone	“politely” · “casual, like a friend” · “short”
What to leave out	“don’t mention the price” · “no emoji”

The reply is as specific as the instruction. Tap the chips. (Dotok example screen)

AI can be wrong. For amounts, dates and promises, always check the read-back.

If you’d rather keep instructions short, see handing it over in one line.

Do I have to write the instruction in their language?: No. Write it in your own language and the reply comes out in theirs.
How is the reply language chosen?: By default it is the language the other person wrote in. You can change it in Settings.