It’s an alternative to translation services like DeepL and LibreTranslate.

Basically any good quality hosted translation service today requires KYC by a credit card, etc or you can use free versions of LibreTranslate but the general consensus is that they aren’t as good.

As far as I know, nokyctranslate is the first high quality translation service that only asks for bitcoin (you don’t even have to give your npub).

There’s also hosted alternatives for people that don’t mind setting that up. There’s offline google ml kit, you can host your own LibreTranslate service, etc.