Lose Your Keys. For Good. Lock and unlock your home without the hassle of keys by rotating your smartphone and tapping the keypad, or with your 4-8 digit pin code. Forget lending keys; share digital keys with friends and family using the free Yale Assure app on your iOS, Android or Samsung Gear Smartwatch. When integrated into most Zigbee Home Automation and alarm systems, including SmartThings, lock and unlock from anywhere, share access and receive notifications. The lock is simple to install and even easier to use.