The free room temperature thermometer app for Android allows you to check the temperature of your room and other locations. The app is simple to use and has a user-friendly interface. All you have to do is open the app and select the option to measure the temperature of the room or the air (Celsius, Fahrenheit, or Kelvin). Once you have completed the measurement, you will be able to view the results in real time. If you want to get an accurate measurement, you should make sure that the device is in a fixed position and that the measurement is accurate.