F2P stands short for free-to-play. This term is used to describe all games that allow players to play free of charge to a certain extent. F2P is the prevalent distribution model in the mobile games market. While these games don’t charge users for installing or playing (unlike premium or paid games), many of them offer advanced features for users to buy as in-app purchases or subscriptions, while the rest earn money by integrating ads into the game.
Free-to-play games use other monetization models than upfront payment to generate revenue. Common mobile game monetization methods they may use include: