I was not impressed with the August Smart Lock. They did fix an earlier critical vulnerability security flaw that potentially allowed an intruder to use a mobile app to find an August lock, based on an identification number that Bluetooth devices often broadcast wirelessly and then open the lock.
Most if not all Electronic Deadbolts sold in Hardware Stores and now Electronic stores have minor to major security flaws. I have been testing some upgrades but unless you need the Home Automation feature of remote or keyless entry stay away. However, talk to your local locksmith and hopefully they can guide to a good lock.
I will have more reviews coming soon and the one lock electronic lock I may install on my house! (with modifications).
Visit my website to see the online locksmith training for beginners, intermediate and advanced. Also, training for convert methods of entry and non-destructive methods of entry.