IronSource, a software developer, agreed to acquire Tapjoy, a mobile advertising and app monetization company, for $400m. “Our platform-based approach to serving app developers means we’re able to plug in multiple strategic additions to our software platform to add more value for customers. This acquisition follows that strategy, ultimately allowing us to serve our customers in the most beneficial way possible, by growing our SDK footprint, improving our monetization capabilities, and positioning our platform as a deep and integral part of the in-app and in-game economy," Omer Kaplan, IronSource Co-Founder and CRO.