More smart home devices offer HomeKit integration these days. The August Smart Lock HomeKit Edition is a smart lock that you can control from your smartphone. It installs on the inside of your door. You will be able to use your smartphone to create virtual keys for guests. The lock automatically unlocks when you approach your door and locks when you leave.
The August Smart Lock lets you control who has access to your home and when. It is compatible with most standard deadbolts. You also get a 24/7 activity log. Like what you see? You can get yours for under $230.