IDFA Information for App Store Submission
During the app submission process to the App Store, Apple asks if your application uses the IDFA.

Advertising Identifier Checkboxes
These are the three checkboxes displayed on the page asking if your app uses the IDFA
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Serve advertisements with the app
Check this box only if you are including another solution to serve advertisements within your app. The Marin iOS SDK does not serve advertisements.
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Attribute this app installation to a previously served advertisement.
Check this box. The Marin iOS SDK does track app installations to associate with conversion events.
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Attribute an action taken within this app to a previously served advertisement.
Check this box. The Marin iOS SDK does use the IDFA to attribute conversion for app re-engagement.
Limit Ad Tracking setting in iOS
The Marin iOS SDK complies with the iOS Developer Program License Agreement (PDF). It does not track anything when the Limit Ad Tracking setting is toggled to the on position. There are no requests made to our servers when this setting is enabled.
Updated less than a minute ago