As of June 2021, the number of tracked Identifier for Advertisers (IDFA) in selected app categories had experienced a decrease compared to before the introduction of Apple's App Tracking Transparency protocol in iOS 14.5. Sports apps, which previously reported a 30.6 percent share of tracked IDFA, saw less than 16 percent of the tracked identifier after the release of the iOS 14.5.
Share of tracked Identifier for Advertisers (IDFA) in selected app categories before and after the introduction of Apple's App Tracking Transparency protocol in iOS 14.5 as of June 2021
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comScore. (June 22, 2021). Share of tracked Identifier for Advertisers (IDFA) in selected app categories before and after the introduction of Apple's App Tracking Transparency protocol in iOS 14.5 as of June 2021 [Graph]. In Statista. Retrieved March 28, 2024, from https://www.statista.com/statistics/1284519/idfa-ios-145-selected-app-categories/
comScore. "Share of tracked Identifier for Advertisers (IDFA) in selected app categories before and after the introduction of Apple's App Tracking Transparency protocol in iOS 14.5 as of June 2021." Chart. June 22, 2021. Statista. Accessed March 28, 2024. https://www.statista.com/statistics/1284519/idfa-ios-145-selected-app-categories/
comScore. (2021). Share of tracked Identifier for Advertisers (IDFA) in selected app categories before and after the introduction of Apple's App Tracking Transparency protocol in iOS 14.5 as of June 2021. Statista. Statista Inc.. Accessed: March 28, 2024. https://www.statista.com/statistics/1284519/idfa-ios-145-selected-app-categories/
comScore. "Share of Tracked Identifier for Advertisers (Idfa) in Selected App Categories before and after The Introduction of Apple's App Tracking Transparency Protocol in Ios 14.5 as of June 2021." Statista, Statista Inc., 22 Jun 2021, https://www.statista.com/statistics/1284519/idfa-ios-145-selected-app-categories/
comScore, Share of tracked Identifier for Advertisers (IDFA) in selected app categories before and after the introduction of Apple's App Tracking Transparency protocol in iOS 14.5 as of June 2021 Statista, https://www.statista.com/statistics/1284519/idfa-ios-145-selected-app-categories/ (last visited March 28, 2024)
Share of tracked Identifier for Advertisers (IDFA) in selected app categories before and after the introduction of Apple's App Tracking Transparency protocol in iOS 14.5 as of June 2021 [Graph], comScore, June 22, 2021. [Online]. Available: https://www.statista.com/statistics/1284519/idfa-ios-145-selected-app-categories/