Face and location recognition

please, i`m trying to use face and location recognition to unlocke an app made of app inventor
this app is one of the requirments op PhD resarch
could any help me

Welcome Ayat.

You might start with Face extension, testing (1). Facial recognition. Detect what makes your face - #7 by Juan_Antonio and Face extension, testing (2). Compare two faces. Facial recognition

then Personal Image Classifier: PICaboo and Personal image classifier display and Introduction to Machine Learning: Image Classification and Artificial Intelligence with MIT App Inventor and Face extension, testing (1). Facial recognition. Detect what makes your face - #7 by Juan_Antonio and Awesome Dancing with AI Tutorial

@SteveJG gave you good places for face recognition, but can you elaborate what you mean by location recognition?