Install the APK > open it > the game will create a Noglory folder in the document > copy and paste or transfer the rpa to /documents/noglory/noclogry.clownsquad/game > open the game and play.
Did you manage to load old saves? I see them, but when I load it gives me an error. I don't really want to have to run through it all again, I only did it about 2 weeks ago.