Tapjoy is a mobile advertising and monetization platform that primarily focuses on helping app developers and publishers generate revenue through in-app advertisements. Founded in 2007, Tapjoy offers various ad formats, including rewarded video ads, interstitials, and offerwalls, which allow users to engage with advertisements in exchange for in-app rewards. The company aims to enhance user engagement and retention for mobile applications by providing effective monetization solutions. Tapjoy is headquartered in San Francisco, California.