iPhone X owners have found that Face ID isn’t available as an authentication method for the “Ask to Buy” feature, which allows parents to approve their kids’ iOS purchases and downloads. Instead, the parent (or any other “family organizer,” as Apple terms it) must enter their entire Apple account password to approve each individual purchase attempt.



“At least we know this inconvenience was intentional. But it begs the question why? The whole point of having biometric auth is to save us from typing in a massively complex password every time we need to get an app. I have four kids. Teens! Do you have any idea how many requests I get? My carpal tunnel is bad and getting worse. Soon I will need a helper monkey. Please, please turn on face authentication for parental approvals,” said one commenter.

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Source: [H]ardOCP – The iPhone X’s Face ID Can’t Approve Family Purchases, and No One Knows Why