Use case
Chat at speaking pace
Team chat is the one place where you write all day in short bursts, often switching language mid-sentence. It is also where a tool that formalises your wording is most obviously wrong.
A chat message should stay a chat message
File your chat apps under chat and the treatment stays light. A reply that comes back as a paragraph of business prose is a reply you have to delete and retype.
The sentence that is two languages
Korean-English mixed sentences are normal in team chat and are the hardest thing for a recogniser. It is the case the cloud model is built for — the bundled offline model gets 52.6% of that kind of sentence wrong.
Questions about this
Does it work in the KakaoTalk desktop app?
Yes — it inserts at the cursor in any app.
Can I keep it casual in chat and formal in email?
That is exactly what tone per app is for.