how protect apps with fingerprint?

hi, the fingerprint in the oneplus 3 its very fast but i download some apps to lock apps but the problem with the fingerprint its a capacitive button in this case its home soo when i want to unlock an app wont unlock because send me to the home screen and the only way its to disable the capacitive buttons and switch onscreen buttons
theres an app to lock apps that work witch this fingerprint?
i dont like onscreen buttons and more in amoled displays soo they burn
thanks for the help and i hope my english its clear to understand

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