GPS Area measurement is the best area measurement app to calculate gps area and distance on the map. 

This application has below features:

1) Area Measurement

To calculate area on the map you have to mark atleast three points. After selecting area will be calculated and it will be displayed. You can convert selected area to multiple units.

You can also save your gps fields area measured.

This application is very useful for Land Surveys.

2) Distance Measurement

To calculate distance on the map you have to mark atleast two points. After selecting distance will be calculated and it will be displayed.

3) Save My Position

In this feature you can able to track gps coordinations latitude and longitude of your current location . You can able to save it.