Easily find out who came to your meeting (or your class)
Spencer Whalen/EyeEm.
These apps are available in theGoogle Play Store.
Check individual system requirements to double-check they are compatible with your gear.

Spencer Whalen/EyeEm. Getty Images.
Best Face Unlock App: True Key
Assign unique authentication credentials to specific websites.
Works with any OS.
The internet tool extension is only compatible with Google Chrome and Microsoft Edge.

Face recognition is just one of the many features found in this robust privacy app.
Whether you’re an Apple or Android user, True Key synchronizes all of your devices for maximum security.
For Taking Attendance: Railer Mobile Face Recognition Attendance
Saves precious classroom and work time.

Share student attendance data with parents and administrators.
One-touch face recognition is only available on iOS.
Takes a while to set up.

Railer is an impressive tool that teachers will love.
Thanks to its analytics and leave management capabilities, Railer is also used in professional tweaks.
The one-touch face recognition feature is especially helpful for learning the names of students and colleagues.

For Businesses: BioID Facial Recognition
Website includes helpful resources for developers.
Identifies photo IDs for online transactions.
Still in the developmental stages.
More geared toward businesses and developers.
BioID is a cloud-based web security service, but anyone can download its free Facial Recognition app.
Like IObit, BioID can be set up to protect specific apps and websites.
For Developers: Luxand FaceSDK
Fun for developers to experiment with.
Compatible with Android, iOS, Windows, Mac, and Linux.
Limited uses for non-developers.
No built-in face unlock feature.
Theopen-sourceSDK features multiple face detection APIs for a number of fun and practical purposes.
you’re able to even makeaugmented realityapps.
Therefore, it can be helpful for auto-tagging friends in photos or conducting surveillance.