Adjust, from Adjust GmbH, is a mobile measurement partner (MMP): a service that measures which ad campaigns bring app installs. Attribution, in Adjust's words, is matching app users to the source that drove their install. A marketer uses the attribution data to measure campaign performance, run retargeting campaigns and compare ad creatives.
A developer adds the Adjust SDK (a code library) to an iOS, Android, Unity, React Native, Flutter or other app. When a user taps or views an ad, the ad network records the engagement; when the user first opens the app, the SDK reports the install, and Adjust's attribution logic finds the source within an attribution window, for example 7 days for clicks. The SDK also records sessions, in-app events and revenue, and supports deep links that open a specific screen of the app. Results appear in the Adjust Suite dashboard, can be exported, or are sent to the customer's servers as raw data through server callbacks.
Adjust is a hosted service sold in packages; some features, called Growth Solutions, are bought separately.