Precise Altimeter Free is a simple yet useful application that turns your Android smartphone into a GPS altimeter. It allows you to measure the altitude of your current location and find out its name. With the latest version of the app, you can also measure the atmospheric pressure of your location, both absolute and relative to sea level. The measurement data can be saved with the relative position and viewed on a map. The app also features a navigator function that lets you revisit the saved locations. The map and navigator functions require an internet connection, but for other functions, GPS signal alone is sufficient. The app is free to use, but there are ads present to pay for management fees.

The app is easy to navigate and provides accurate altitude and atmospheric pressure measurements. The ability to save and view the measurement data on a map is a useful feature for hikers and travelers. The navigator function also adds convenience to revisit saved locations. The app's interface is straightforward and does not require any technical knowledge. However, the ads can be a bit intrusive at times. Overall, Precise Altimeter Free is a handy tool for anyone who needs to measure altitude or atmospheric pressure on the go.