Step 1, open a file manager, go to android, then data, then lustful.sin, then files. (Android/data/lustful.sin/files)
Step 2, copy the saves file and logs.txt into cloud or anything that can store files too.
Step 3, download the copied files into the phone you wanna transfer it too and paste them in android/data/lustful.sin/files and you're good to go. Alternatively, you can skip most of this just by using shareit, Bluetooth, or anything that just let's you share/transfer files.
Also you don't need to uninstall the old version on Android, just update it