A free program for Android, by SmartRent.

SmartRent is a smart home solution, giving residents and owners the ability to control their smart home devices from a single application. The solution is affordable and can be installed quickly.

SmartRent is an Android mobile solution and a cloud-based platform for the home. The solution uses a combination of hardware and software to connect to a variety of smart home devices that reside in your home or apartment, including:

Light switches, outlets, motion sensors, window blinds, doorbells, door locks, security cameras, smart thermostats, voice-control devices, and more. Moreover, you don’t have to worry about anything else because this is completely free.