This app is design for people who are working outside and want to calculate distance between points using the build-in GPS of their iPhone. The result will be as good as the precision of the GPS.
To calculate the distance, since the earth isn’t a perfect sphere, we are calculating the earth radius according to your position on the earth. We are also considering the altitude of your position to be as precise as we can get.
To use this app, go in the Map tab and press the button “Mark” to create a new point. When you will have two or more point, the distance will be calculated and updated automatically.
In the Elevation tab, you will see an elevation graphic of all your points taken.
In the Points tab, you will see a list of every point taken. There you can chose de delete a specific point or delete all of them.
Finally, in the More tab, you will find the option for the map type and unit option.