There is no official mobile version of the game, not even on Patreon. Spedu considered making one at some point, but he decided against it, since it's very easy to play the game as it is on android via Joiplay https://itch.io/t/1278376/how-to-play-on-android So yeah, not sure what your friend supposedly found on Kemono (which yeah, is a piracy website that Spedu most def. doesn't upload to himself), but it couldn't be a mobile version.
Sorry I'm learning English but I still have some writing and logical errors in the sentences, what I was referring to is that my friend found the most recent version (0.56) for mobile, I don't know if he used an emulator or something since I asked him to delete it but I think the idea is clear, basically they distribute the Patreon version for free 🙁