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I am running into a problem in our iOS app. I have set up interstitials in both DoubleClick for Publishers Small Business. The implementation in our app was straight-forward and interstitials get displayed when my triggers are being hit.

Now I want to limit the interstitials with a frequency cap of once per day. I have set this up in the corresponding line item, but this does not seem to be respected inside the app.

Example: I have set up a frequency cap of once per day. I open the app, get to the point where the interstitial ad shows, I click away the interstitial and close the app. When I open the app again and navigate to the interstitial target point, I get another interstitial - although as far as I understand this the frequency cap should be working in this case.

As a sidenote, in the Android app with a different line item, but otherwise similar setup, everything works fine.

Do I have to set something special inside the iOS Ad request code? Or is there a special DfP setting for iOS apps to allow frequency capping?

j0nes
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1 Answers1

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Answering my own question here: the problem was that this behavior occured when using a Testflight build. Frequency capping works by storing the Advertising Identifier in the adserver and thus identifying users.

With Testflight builds, the Advertising Identifier changes every time. Therefore the ad server cannot track the user and sends out a new interstitial every time.

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j0nes
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