Smart-E, developed by saswell, is a free Android application that allows you to easily control your thermostat or gateway. With Smart-E, you can directly or remotely control your thermostat or gateway from anywhere.

This app offers a variety of functions for different types of thermostats, including power control, energy conservation, and temperature control. Specific features vary depending on the type of thermostat you are using. Smart-E ensures that you can operate different functions for different thermostats, making it a versatile app for your home or other places.

Overall, Smart-E is an excellent utility and tool for anyone looking to control their thermostat or gateway with ease. The app is user-friendly and provides a hassle-free experience for users.