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App Store App Intersection Live
This endpoint will provide you with a list of keywords for which the mobile applications specified in the app_ids object rank within the same App Store SERP.
The app_id parameter can be found on the App Store website as a part of a URL pointing to a specific mobile application. It consists of numbers indicated after id in the URL string. For example, here is the URL of the TikTok app on App Store:
https://apps.apple.com/us/app/id835599320
The app_id of this app is 835599320