 Jack Pocket, the app for securing official state lottery games right on your phone. Over $250 million have already been claimed by Jack Pocket users, including a recent million-dollar Mega Millions winner in New Jersey. Download the Jack Pocket app. Use the code Z100 for a free Powerball or Mega Millions ticket. That's the Jack Pocket app. Use the code Z100. Jack Pocket, the official partner for Z100 and the Elvis Duran Morning Show.