We can say that an APK file is a modded version of an official app. An app is packaged with an extension .apk on an Android phone mobile app, so that's why it's known as an APK file and its modified or modded version, known as a Mod APK, is known as Mod APK. We are now living in a world where mobile apps have become a major part of our lives. There are a lot of apps available for us to use. When we don't have enough budget and also want to use some premium features that resemble the premium features of an app, we can download and install mod apk on our mobile phone. In short, we can grant access to any paid mobile app by using our single penny.