You can play the game with lives. Starting with 5, you lose 1 life every time you fail to beat a level.
You receive 1 free life every 30 minutes, but you can only have a maximum of 5 lives.
Lives can also be purchased using jewels.
Also, there are many way to get free lives.
1st, you can get if from daily spin on web .
2nd, when you join fan page event and are picked lucky winner, you can get it.
3rd, Asking lives to your friends. If they send it back, you can get it!
(but you can't get lives more than 5. Even if your friends send 10 lives.)
Finally, there are some events in game which you can clear the mission and get rewards.
Sometimes, it will gives you a life!