If you've lost your progress or want to jump to new content, you can sometimes use community-provided sync codes directly in the game: Open the game and go to . Select Download from server at the top middle.
To further protect your save file:
If you don't see it there, the game often stores persistent data in %APPDATA%/RenPy/AttackOnSurveyCorps Android/data/com.attackonsurveycorps/files/saves (or a similar folder named after the package). attack on survey corps save filezip new