According to Flurry's data, just around 12% of global users have allowed app tracking for apps that requested it on their devices post the iOS 14.5 update. Also worth noting is that disabling app tracking does not disable ads. We won't dig too deep into the broader debate on targeted online advertising and privacy. Flurry has some more statistics somewhat related to this as well - the percentage of iOS 14.5 users who have taken the time to set their app tracking preferences to "Restricted" altogether in settings. Anti-app tracking users with "Restricted" settingSource
Source: The Nation May 08, 2021 16:30 UTC