Several users have reported issues with installing the latest version of Sisterly Lust. Together with the help of a couple of users I’ve narrowed down the problem. Due to the file size of the package, the install fails on Android devices that either have not enough storage space or not enough memory.
The recommended specs for the regular edition are at least 3GB RAM and 6GB free storage space.
If you can’t install the game on your Android device, you might give the compressed version a try:
NOTE: The size of the compressed version is over half of the regular release. You will notice compression artifacts, for example, but at least the game should be playable on lower end hardware.