The app said it "may collect biometric identifiers and biometric information" from users but would need consent before this data is taken.

TikTok has added a new section to its US privacy policy called "Image and Audio Information".

It can be found under the heading "Information we collect automatically".

This section of the policy is already fairly lengthy.

The new policy explains about collecting object and scenery data, which some other social media companies do for this like AR effects and ad targeting.