Six to Start is definitely a game developer to watch. Their exercise apps fuse physical challenges with good storytelling, and this game in particular is kid-friendly, colorful, and excellent for passive gameplay. As you walk, the app counts your steps. Each step earns 1 "stepp," in game currency. Build up enough stepps and you can purchase walking companions wholl add to your stepp count. With your menagerie, the game challenges to walk around the world in 80 days, for example, or to journey to the center of the earth, for another, become manageable challenges. This game is good for anyone who wants to add some fun to their day, and encourage themselves to get moving more often.
TaitVox about Step Buy Step: A Pedometer Adventure