Since this coin generator is online based you don´t have any special requirements for your device. This Fifa 15 coin generator is mobile-device optimized and should work well with most known devices (iPhone, Samsung, PC, Apple etc.). Mobile and desktop versions of this tool are a little different, but they use the same system to deliver you coins. Yes, it is tested with different devices and browsers and should be bug-free. Some have said that the tool froze, but it helps to reload the page and it should be in working condition again.