Can more than one person's fingerprint be registered to my app?

The use of fingerprint or face recognition in the app is a function of your phone and not of the app itself. If you choose to allow someone else to add their own fingerprint to your phone, you will be able to use that as well. This person will then also be able to unlock your phone and do anything with it, so we advise you to think carefully before deciding to allow this.

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