Share of app publishers worldwide who have seen a drop in iOS app advertising revenue after the Apple App Tracking Transparency (ATT) framework rollout in 2021
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Share of respondents
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In April 2021, with the release of iOS ****, Apple introduced the App Tracking Transparency (ATT) framework for developers. The framework, which is required to access users' Identifier For Advertisers (IFDA), gives users' the freedom to enable or disable tracking.
According to a survey of app publishers carried out in 2021, ** percent of respondents reported it was too soon to assess properly the impact of ATT adoption on advertising revenues. By comparison, ** percent of respondents saw a drop between ** percent and ** percent in their iOS ad revenue.
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AdColony. (November 10, 2021). Share of app publishers worldwide who have seen a drop in iOS app advertising revenue after the Apple App Tracking Transparency (ATT) framework rollout in 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/1281050/apple-att-impact-ios-in-app-ad-revenues-global-publishers/
AdColony. "Share of app publishers worldwide who have seen a drop in iOS app advertising revenue after the Apple App Tracking Transparency (ATT) framework rollout in 2021." Chart. November 10, 2021. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/1281050/apple-att-impact-ios-in-app-ad-revenues-global-publishers/
AdColony. (2021). Share of app publishers worldwide who have seen a drop in iOS app advertising revenue after the Apple App Tracking Transparency (ATT) framework rollout in 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/1281050/apple-att-impact-ios-in-app-ad-revenues-global-publishers/
AdColony. "Share of App Publishers Worldwide Who Have Seen a Drop in Ios App Advertising Revenue after The Apple App Tracking Transparency (Att) Framework Rollout in 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 10 Nov 2021, /statistics/1281050/apple-att-impact-ios-in-app-ad-revenues-global-publishers/
AdColony, Share of app publishers worldwide who have seen a drop in iOS app advertising revenue after the Apple App Tracking Transparency (ATT) framework rollout in 2021 ÌÇÐÄÆƽâ°æ, /statistics/1281050/apple-att-impact-ios-in-app-ad-revenues-global-publishers/ (last visited August 01, 2026)
Share of app publishers worldwide who have seen a drop in iOS app advertising revenue after the Apple App Tracking Transparency (ATT) framework rollout in 2021 [Graph], AdColony, November 10, 2021. [Online]. Available: /statistics/1281050/apple-att-impact-ios-in-app-ad-revenues-global-publishers/
