Also, games with a large player base but low in-app purchase conversion rates may find that ad revenue is a valuable source of income. Through careful consideration of the frequency yoyo slotsand placement of advertisements in their games, developers can optimize their ad revenue without compromising the quality of the player experience. In the game app economy, keeping users interested is essential to boosting retention. Retention describes a game's capacity to maintain players' interest over time as opposed to waning after an initial play session.