So, if what you said is true
I just need to download new version and the saves still there
But the problem with Android is normally you cant install the same app again by download apk
It isn't like update through app (chplay, taptap,...), download the new version apk doesn't update old version, thats is why i said like other games, you should save your saves then transfer into new version
Ps: I will sacrifice my whole progress to check if it worked or not
Update 1: didn't work at the first try because lack of storages
Update 2: it worked
Update 3: could be because of the engine/plugin you used, some other games i mentioned both use Renply plugin