In the past few years, we have seen plenty of iPhone compatible door locks. The NGTeco Bluetooth Biometric Door Lock is also worth a look. This Alexa compatible smart door lock can be unlocked with your fingerprint, a smartphone, keypad, and mechanical key. It has a 1.5-year battery life and can handle over 100 passcode, fingerprints, and users.
This lock has a capacitive fingerprint sensor and an anti-peep keypad. You can use your phone to grant temporary access to your guests and friends. It has a reversible design to fit any door opening direction. A backup power option is also available.[where to get it]