Phone Sensors is a free Android application developed by Maciej Komur that displays data from four sensors of Samsung Galaxy S4. The application provides information about the ambient air temperature, illuminance, ambient air pressure, and ambient relative humidity.

Phone Sensors is a useful tool for those who want to monitor the environment around them. It gives accurate readings of the ambient conditions and presents them in an easy-to-understand format. The application is simple to use and intuitive, making it accessible for everyone.

However, it is important to note that this application is compatible only with Samsung Galaxy S4. Overall, Phone Sensors is a great utility tool for Samsung Galaxy S4 owners who want to keep track of their surroundings in real-time.