Simple Magnetometer is an Android application developed by THMFactory. It is a free travel and navigation app that falls under the category of Maps and GPS. This app measures the three-dimensional Geomagnetic field strength and displays it on a real-time graph. The unit of measurement is μT (microtesla).

To begin measuring, all you need to do is press the "Start" button. The app will then display a graph that shows the Geomagnetic field strength in real-time. Additionally, you can find the Geomagnetic field strength in the Notification drawer.

In conclusion, Simple Magnetometer is a straightforward and easy-to-use app that provides accurate measurements of the Geomagnetic field strength. It is a useful tool for those who require precise and up-to-date information on the Earth's magnetic field.