1.0.0 - Initial release
This is the initial release of the cheat tool. Passing your user ID (which can be found by trying to contact the customer support) will give you 1000 gems in your account.
Make sure to SAVE YOUR GAME to the cloud in the game's settings first (Backup & Restore button) before running the tool, as you might otherwise loose some progress or even completely break your save. Once the backup is done (the Backup button goes grey after you press it), don't touch your game, run the tool, then press the Restore button. Your gem count will be changed.
Another safe way, is to run the Backup, then quit the game completely (swipe it off from the open apps), run the tool, then open the game again.
Future releases will let you do an actual backup of your save and restore it in case anything goes wrong, and even restore your game's progress on another account if you ever get banned. If something goes really wrong, you can wipe your game's data from your phone, and press the "I played already" button when restarting the game. This will restore your save.