In-App

In-app denotes interactions, advertising, transactions and measurement that occur inside mobile or tablet applications on iOS and Android rather than in web browsers. It includes ad placements (banners, interstitials, rewarded video, native), SDK-based monetization and analytics, in-app purchases, and event-level tracking used for attribution and performance reporting.

Think of an app as a privately curated storefront where publishers control the layout, inventory and user experience; in-app advertising plugs into that space via SDKs, ad SDK mediation or programmatic SDKs. You’ll find apps integrate ad networks, exchanges and measurement partners to serve creatives, optimize yield and attribute installs or events. Developers surface inventory through SDKs and mediation layers, while DSPs and ad networks buy impressions programmatically or via direct deals. Privacy controls and OS-level changes (like IDFA/GAID or SKAdNetwork) shape how those signals flow and how campaigns are measured.

Publishers and app developers supply inventory and monetize users through direct sales, ad networks, SSPs and mediation platforms; large game and utility publishers often negotiate direct deals. Buyers include brand advertisers, performance marketers and DSPs running user acquisition and retargeting campaigns. Mobile measurement partners, ad exchanges and programmatic platforms mediate pricing and attribution, while platform owners (Apple, Google) and privacy rules exert outsized influence on targeting and measurement. You’ll see a mix of programmatic RTB, private marketplaces and direct-sold guaranteed deals depending on app scale and category.