# App data-sharing

> Learn about ad metrics and post-install event data and how this data works with your User Acquisition campaigns.

[Ad metrics data-sharing](./ad-metrics-data-sharing): Learn about engagement ad metrics that power Unity User Acquisition campaigns, including Starts, View, and Clicks.

[Post-install event data-sharing](./post-install-event-data-sharing): Review the different kinds of post-install event data and which User Acquisition campaigns need this data.