ADT Smart Secure is a free Android app developed by ADT Security that gives you full control over your security system, cameras, lights, locks, thermostats, and other connected devices remotely. With this app, you can arm and disarm your home security system from anywhere, receive text and email notifications in case of an alarm or when the system is disarmed, watch and record live videos through your home security cameras and control your Z-Wave devices.

It is important to note that to access this app, you must have an account set up with ADT Security. ADT Smart Secure is a reliable app that provides complete control over your security system and home automation devices.