Here is another convenient kit that turns your door smarter. The Yale Assure Lock SL with Kincaid BK Lever replaces your existing deadbolt and door lever, so you can lock/unlock and share access with others using the August app. You also get a WiFi bridge with your purchase.
You can check the status of your lock with Alexa, Google Assistant, and Siri. Costs under $300 at this time.