Here is another smart door lock that lets you gain access to your home without keys. The Revolo Smart Lock has a sleek design and lets you unlock your door by simply knocking on it. It is smart enough to know when to automatically lock or unlock your door. This door lock uses your smartphone’s location to determine if it should open the door. It is compatible with Google Home and Amazon Alexa.
The Revolo door lock combines with your smartphone to give you real-time access notifications. Its sensor lets you know the status of your door at all times. You can grant access to your home from your phone. Temporary access codes are also supported.[where to get it]