Side note: This cryptocraze is serving to create a lot of nefarious software and WEB sites as well. There are phone apps, disguised as simple games, which are really using the phone as a mining device. Same with WEB sites. There are WEB sites now using your computer as a mining device. They are popping up all over the place.
The astute computer user will be able to tell a bad WEB site, but the bad phone app is more difficult to detect.