Board Thread:Shadow Fight 2 Discussion/@comment-58.179.7.2-20140703023746/@comment-25669516-20160829134328

On a rooted Android phone use Titanium Backup or Master Shadow's method listed on this thread. If you don't have root then you can try Helium Backup instead (needs a PC/Laptop as well). I don't know about iOS but I bet they have similar applications as well.