Where is it? 

You can use joiplay to port it my guy, so it's not a problem

Fuck it can't be Ported to joiplay. I tried it.

hahahaha you guys dont have the android version? 

It takes a lot of work to maintain https://yni.itch.io/alvein/devlog/387527/alvein-57b-public-update

Joiplay should work, but if you insist on using an older version apk, then it might be difficult to get help when it comes to issues or what to do next