Drop7 FREE by Zynga is a captivating & fascinating puzzle game to play on iPhone. In this game, the players have to stay alive by dropping various numbered discs into a grid. It includes 3 fantastic game modes such as relaxed Normal, fast-paced Hardcore & mysterious Sequence modes. The players have an option to start the game from where they have left it because this game saves their progress. It also has leaderboards that allows comparing the scores with 'Facebook' friends.