Enroll staff and clients with their face and the fingerprint sensor on a phone or laptop, then verify who is in front of the camera. Every check is logged to the person's profile.
Start the camera, or verify with fingerprint only.
Capture 5 or more samples: straight, slightly left, slightly right, with and without glasses. Better samples mean fewer false matches.
Uses the fingerprint sensor (or face unlock) built into this phone or laptop. The fingerprint itself never leaves the device; the device stores a secure key for this person and proves it with their finger.
Face and fingerprint data is biometric personal data. Keep the consent reference on every profile, delete a profile when a person leaves or withdraws consent, and don't use these checks as the only basis for decisions about someone. Fingerprint checks prove the enrolled device's owner touched the sensor; a shared device accepts any finger enrolled in that device's settings.