Chartboost is a mobile game advertising and monetization platform that enables developers to promote their apps through in-app advertising. Founded in 2011 and headquartered in San Francisco, Chartboost provides users with a vast network of mobile game publishers and advertisers, allowing them to optimize their ad campaigns and increase user acquisition effectively. The platform offers various services such as programmatic advertising, user engagement analytics, and direct deals, facilitating a comprehensive approach to mobile game monetization.