Pokémon Go (stylized as Pokémon GO) is a 2016 augmented reality (AR) mobile game initially developed and released in collaboration with Nintendo and The Pokémon Company for iOS and Android devices. It uses the GPS on mobile devices to find, catch, train, and fight Pokémon, and it imitates the player's actual location. The game is free-to-play; it uses a freemium business model merged with local advertising and supports in-app purchases for extra in-game items and additionally hosts remote and live events. The game debuted with around 150 species, with more species being added gradually.