Q. What is modding an apk? A. Modding an apk means that you unarchive the apk, look into the source files, such as front-end graphics, source codings etc, and tweaking them the way you want. And then repacking it to .apk extension and install them in you device. For an example, take the game Hill Climb racing. You want yourself sitting there in the car and playing the game.. provide me your photo.. I will do that for you.. Or you don't like the smoke coming out of the truck.. I can tweak that too.. this is with Hill Climb Racing.. There are thousands of games and apps out there which can be modded with a little efforts.
The best part of modding is that you can remove the annoying Ads popping on the screen. They can also be removed with the method without buying the premium version.