http://videogamesguide.comunidades.net/dragon-city-mobile
The Way to do dragon city gems hack
If something is hackable is dependent on whether the data is stored on your device you can root and also hack or on an external computer that can't be hacked. In the instance of any internet mobile game, those pieces of data are all stored on the game host and not on your cellular device or PC. In the instance of Dragon City every one of the important account data for your accounts such as gems, gold, owned dragons, crystals, crystals, eggs, food, XP account level and so forth are stored on the Gameloft servers. Anyone who claims they have some kind of tool, generator or adder that can change these values for you personally is sadly lying and probably wanting to scam you in filling in polls or downloading malware. Also if this sort of cheat was potential and liberated, everyone else would use it and also the game could just not exist, since the developers would not earn money and therefore would have zero excuse to keep the game running.