Pokémon Go is a free-to-play, location-based pervasive augmented reality game developed by Niantic for iOS, Android, and Apple Watch devices. After establishing a game account, the player creates an avatar by selecting a hair, skin, and eye color; style; and outfit.Once created, the avatar is displayed on a map using the player’s current geographical location. Features on the map include PokéStops and Pokémon gyms. PokéStops provide players with items, such as eggs, Poké Balls, berries, and potions. These PokéStops can be equipped with items called lure modules, which attract additional wild, and sometimes rare, Pokémon. Gyms serve as battle locations for team-based king of the hill matches. PokéStops and gyms are typically located at places of interest.These locations are re-purposed portals from Ingress, Niantic’s previous augmented reality game.