August Smart Lock with HomeKit Review @ Bigbruin.com
 

August Home is a company that currently specializes in automating doors. They make deadbolt locks, keypads, doorbell cameras, and a hub for remote access. When my parents recently mentioned they wanted to automate their lock I knew I wanted to keep it simple so I immediately thought of August. What I like about their deadbolt design is it doesn't require you to replace your keyed locks, just the part inside the house.

https://bigbruin.com/content/August-Smart-Lock_1