Apple’s decision to change the privacy settings of iPhones caused an estimated $9.85bn of revenues to evaporate in the second half of this year at Snap, Facebook, Twitter and YouTube, as their advertising businesses were shaken by the new rules.
Apple introduced its App Tracking Transparency policy in April, which forced apps to ask for permission before they tracked the behaviour of users to serve them personalised ads.
Most users have opted out, leaving advertisers in the dark about how to target them. Advertisers have responded by cutting back their spending at Snap, Facebook, Twitter and YouTube and diverted their budgets elsewhere: in particular to Android phone users and to Apple’s own growing ad business.
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