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 Z-Wave home automation and alarm systems, including SmartThings, lock and unlock from anywhere, share access and receive notifications. Works with Amazon Alexa (lock and check lock status only) when used with a SmartThings Hub and app or Wink Hub and app. The lock is simple to install and even easier to use.