Pokémon Go is a free-to-play, location-based augmented reality game developed by Niantic for iOS, Android, and Apple Watch devices. It was initially released in selected countries in July 2016. In the game, players use a mobile device's GPS capability to locate, capture, battle, and train virtual creatures, called Pokémon, who appear on the screen as if they were in the same real-world location as the player. The game supports in-app purchases for additional in-game items.
Pokémon Go was released to mixed reviews, with critics praising the game's concept and the incentive to be more active in the real world, while criticizing frequent technical issues apparent at launch. Despite such reviews, it quickly became a global phenomenon and was one of the most used mobile apps in 2016, having been downloaded more than 500 million times worldwide. It was credited with popularizing location-based and augmented reality gaming, promoting physical activity, and helping local businesses grow. However, it also attracted controversy for contributing to accidents and becoming a public nuisance at some locations. Multiple governments expressed concerns over the game's security, with legislation regarding it being passed in some countries as a result.