Mobile credentials Krypto Mobile Credentials license - 25 users Use your smartphone as a card or tag Five different ways to gain access NFC: Present Smartphone to reader Bluetooth: Tap door open in Atrium BT app Biometric: Fingerprint Automatic: Hands-free Voice activated: say 'open door' No annual subscription fee or cloud storage fee Only for use with A22K controller Free ATRIUM app available for iOS and Android