Allow fingerprint unlock but require password after a certain time limit

by Alex   Last Updated January 29, 2018 10:11 AM - source

Currently with a Samsung Galaxy S8, but I believe this is common to other devices, I can setup fingerprint unlock which requires a password when the device starts up or if I fail to scan my finger correctly a few times.

I would like to add another limitation: allow fingerprint unlock but require a password unlock every x minutes/hours or some other configurable time limit.

A somewhat silly scenario to illustrate the need: suppose I fall asleep on the train, I don't want anyone to be able to scan my finger and unlock my phone. I still want the comfort of unlocking the phone with my finger while knowing that after a while it will lock itself and require a password.

Is there a setting I'm missing or an app that can do that?

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