Since this code generator is online based you don´t have any special requirements for your device. This PSN code generator is mobile optimized and should work well with most known devices. Mobile and desktop versions of this tool are a little different, but they use the same system to deliver the results. 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 all should be good again.