Another problem with mods is the fact that they do not follow the security rules of the Google Play Store. You can't trust mods, and they can cause serious problems for your device. Because of this, you should only download these apps from the Google Play Store. Even though it may seem tempting, you should never download apps from an untrusted source. The chances of getting malware or other harmful software from these sites are high.

Mod APKs are available in two formats -.apk and obb. The former is the standard format for Android applications while the latter uses an additional data file, called.obb, which is required by some apps. The Obb format is used by multiple game developers because it makes an app more compact and easier to maintain.