APK MOD INFO
Name of Game: MARVEL Avengers Academy
VERSION: 1.3.3

Name of the cheat, mod, or hack (credits: wendgames):
-FREE STORE

MARVEL Avengers Academy MOD APK 1.3.3 (Free Store)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb