Which type of Yahoo native ad format is *exclusivelydesigned to drive application installs, and how does its tracking mechanism fundamentally differ from other formats?

The Yahoo native ad format exclusively designed to drive application installs is the 'App Install Ad'. The tracking mechanism for App Install Ads fundamentally differs from other native ad formats because it relies on app store attribution and deep linking, rather than solely on website-based pixel tracking. App store attribution involves integrating with mobile measurement partners (MMPs) or directly with the app stores (Google Play Store and Apple App Store) to track app installs and in-app events that result from ad clicks. This allows for precise measurement of app install conversions. Deep linking refers to the use of specific URLs that direct users to a specific location within the app after installation, or directly to the app store if the app isn't already installed. This provides a seamless user experience and allows for tracking user behavior within the app post-install. For example, a user clicking an App Install Ad might be directed to a specific promotion within the app upon first opening it, and the MMP tracks that the install originated from that specific ad. Standard native ads, in contrast, primarily track conversions based on website pixel fires, which measure actions taken on a website after a user clicks an ad. These do not inherently track app installs or in-app behavior. The App Install Ad format uses specific SDKs (Software Development Kits) integrated within the mobile app to communicate install and engagement data back to the ad platform, enabling accurate attribution and optimization for app install campaigns.