Is it possible to do simple fingerprint recognition app in Unity 3D?
NOTE:
I’ve heard about using frameworks, but is there a good tutorial anywhere on how to use them with Unity?
How exactly would you be scanning in these fingerprints? and you may want to check out this (A Framework in C# for Fingerprint Verification - CodeProject)
Or check out the source code that is
Not done in Unity but as long as you have the correct libraries set up you should be able to get an output.