ECA: 0.8d SE - Android Version
Here's the official full 0.8d version for the Android. It works differently from the previous versions but it should work with those versions and allow you to keep your saves from previous official versions. Read below and follow the instructions.
If you have installed and played ECA for the Android before:
1. Download and install the APK.
2. Download the archive.rpa file and copy to the /Documents/RenPy_Saves/<appname>/game/ folder.
If you haven't installed and played ECA for the Android before:
Between steps 1 and 2 above, run the game after installation and give it file permissions. Without this, it will cause errors.
0.8d SE APK
Archive.RPY
Let me know if you have any problems.