A:Answer You'll have to ask ADT about this to be sure. There are both Zigbee and Zwave models of this lock, and you'll have to get the right one. Most of the compatible systems are listed on the box, but some require you to call the security company to "add" the lock to your system (or show you how). As for using this with your iPhone, there is NO APP just for this lock. The lock only works as part of a security system -- and so you will use the security App to control the lock. Note that with Time Warner Intelligent Home you cannot set the codes for the lock using the app. You can open and close it... and you can tell when someone else opens or closes it... but you cannot set or erase codes except by physically taking the cover off the lock and programming the lock itself.