Indoor Outdoor Room Temperature Thermometer App is a free Android application developed by Next Level Technology Inc. It is a simple thermometer that measures ambient temperature inside and outside. The app uses your device's integrated sensor to measure the indoor temperature, and geolocation technology to measure the outdoor temperature and humidity based on your location.

The app measures temperature in Celsius and Fahrenheit units and also indicates weather conditions as icons. It also has a hygrometer that measures humidity. To check the current temperature, you just need to open the app and wait for 1-2 seconds. For the external thermometer to work, an internet connection is necessary to collect the data.

However, sometimes there is a need for calibration, so it is recommended to leave your phone on a flat surface without touching it for about 5-10 minutes to get accurate indoor and outdoor temperature readings. Additionally, it is important to keep the phone away from too hot or too cold objects for better results. When the phone is in use, the battery warms up, and the temperature measured is higher than the real temperature.

Overall, Indoor Outdoor Room Temperature Thermometer App is a useful and accurate thermometer app that provides temperature and humidity readings based on your location.