Please be warned that we don't want to freak you out while revealing the truth. To hack anything, not just COC, we must have access to its source code to modify the game data. The source files of COC are not stored in your device but on a remote server of Supercell. That is why you require the internet to connect to the game server. As the Supercell hosts are highly protected, it is not possible to hack the original COC in any way, whether you like it or not.
All the different articles that you read about it online are obsolete and they never worked. They will just make you spin in the loop after loop and you will end up getting nothing. But, an experienced developer can modify the app data stored on your phone and connect it with a private server for fun. This is 100% legal as nothing is being modified in the original server. That is the real truth behind hacking the COC android game. So, don't fall into such traps and download our private server apk to test out various game parts for fun only, nothing more than that.