It is a good game but sometimes it gets boring
Dragonvale.
No, DragonVale is a Game Center game for Apple touch devices.
You can log into DragonVale through Game Center on Apple devices. You can then swap between devices with the same game.
There are no legitimate sites or apps that give you DragonVale gems, besides the actual official DragonVale game app.
DragonVale is not a Facebook game. It is only available through the Apple App store.
delete the game
I don't think you can:(
you use game center
DragonVale is not available on the Mac, only mobile Apple iOS devices such as iPad, iPod, and iPhone.
Go to itunes and resync it,
Delete the game from your device and the game center then download it again.
DragonVale is Game Center compatible. You can log out of Game Center on one device, and into on another device to pick up your game where you left off. I often switch between my iPad and iPhone to check in on my game. Other people can also have DragonVale games going on the same device by simply having their own Game Center log in.