Here is another smart door lock that works with Alexa, SmartThings, and Bluetooth for keyless entry. The Philia PDS-100 door lock lets you program 1 master pin, 10 guest passwords, and 30 RFID tags. You can connect it to your Z-Wave hub to integrate it into your phone.
The app lets you set guest passwords and keep up with who has entered your home when. This smart door lock is available for under $160 at this time.