Pokémon GO is a free-to-play augmented reality mobile game developed and released by Niantic (in conjunction with The Pokémon Company) for iOS and Android devices on July 6, 2016 (in the U.S. and Australia). It was later released for European countries on July 13-16, 2016.
Based on the Pokémon series of RPGs, Pokémon GO has players, as Pokémon Trainers, catching virtual creatures (called Pokémon) throughout the real world using the mobile device's GPS (and optionally the device's camera).
As players catalogue their findings on their device's "Pokédex", they earn experience points by doing various tasks (such as interacting with local meeting places called Pokéstops) to level up their Trainer Level, which unlocks new content for the game (including rarer Pokémon to find, new items to help catch them, and the option to battle other Pokémon for the supremacy of local Pokémon Gyms).
While items can be acquired by interacting with Pokéstops, the game includes microtransactions as players can purchase the game's main currency, Pokécoins, with real money.
Players walk around the real world, capturing Pokemon and collecting items at Pokestops. Various gyms are placed at landmarks, and three different teams fight for control of these gyms by leaving their most powerful Pokemon there to guard the location. A rudimentary fighting mechanic is included for players who want to train at a friendly gym or fight to overtake a gym controled by the enemy team.
Pokémon GO Plus
The Pokémon GO Plus is an optional wearable accessory released by Nintendo that allows players to interact with nearby Pokémon and Pokéstops without requiring them to use their mobile device. Retailing for $34.99 USD, it resembles a combination of a poké ball and a Google Maps pin and connects to the player's mobile device via Bluetooth.