Hi,
I would like to propose the following feature:
As a security conscious user who also values convenience I would like to be able to:
for N minutes after unlocking the app with my passcode
unlock the app again using touch ID
This way I would achieve the following goals:
Enpass would never be left fully unlocked (i.e. changing into the app via multitasking, activity or tapping the icon should never lead into an unlocked app)
Enpass would still regularly require the full passphrase
Touch ID would be used as a convenient temporary unlock
Thereby, in my opinion, providing a good trade-off between convenience and security. Let's not forget: A fingerprint is a username, not a password.