Personally, I had nothing but trouble with the Yale Smart Lock. The lock itself works. But integrating it with Wi-Fi and Bluetooth was terrible. $0.02
Personally, I had nothing but trouble with the Yale Smart Lock. The lock itself works. But integrating it with Wi-Fi and Bluetooth was terrible. $0.02
Does it need to be an iPhone app? Is simply getting an alert via SMS good enough? If so, you could rig something with a raspberry pi.
$0.02