Advertisers who rely on targeted ads for revenue are facing their worst fears. Analytics data indicates that 96% of iPhone users chose to opt out of tracking following the launch of iOS 14.5 (iOS 14.5).

When Apple released the iOS 14.5 update late last month, it began imposing a policy called App Tracking Transparency.

Pursuant to this policy, iPhone and iPad applications are required to obtain user permission in order to use technologies such as IDFA to track these users' activity across multiple applications for data collection and ad targeting purposes.

The change faced fierce resistance from companies such as Facebook, which built their operating system by leveraging user data to target the most effective ads for these users.

Facebook has gone even further by publishing full-page press ads that make clear that the change will not only harm Facebook, but also destroy small businesses around the world.

Shortly after Facebook published these press announcements, Apple CEO Tim Talk attended a data privacy conference and delivered a speech in which he sharply criticized Facebook's business model.

However, Facebook and other companies complied with Apple's new laws to avoid being denied listing their apps on the App Store.

And some applications displayed a screen explaining why you should subscribe before asking Apple to subscribe or cancel the subscription.

This new data comes from Flurry Analytics, a company owned by Verizon, which says it is used in more than a million mobile applications.

Fleury Analytics says it updates the data daily so followers can see the trend as it progresses.

Based on data from one million apps, Fleury Analtics says that US users agree to be tracked for no more than 4% of the time, while the global number is much higher, indicating tracking for more than 12%.

Data from Fleury Analytics shows that iPhone users are refusing to track at rates much higher than surveys conducted before the release of iOS 14.5 had anticipated.

And one of these polls found that only 40%, not 4%, choose to track when prompted.

However, Fleury Analytics 'data does not separate numbers by app, so it is impossible to know from this data if the numbers tend to unsubscribe from app tracking due to users' distrust of Facebook.

IPhone users are likely to trust some types of apps more than others, but this data is not available.