Surveyor is a virtual tape measure of sorts that lets you take measurements by with your camera. The app lets you place markers on “virtual ground” that’s been overlaid with the camera image. Surveyor locks in the virtual ground so no matter what you do or which way you’re turned your markers will stay put. The distances between each point/marker are calculated then displayed on your screen in the unit you specify.
Note this application:
Measure distances with a single click on your phone!
With Surveyor, you can measure distances by placing markers on a virtual ground that is overlaid on the camera image.
Surveyor locks the virtual ground to the real world so no matter which direction you turn to, the markers will always stay where it is originally placed.
Distances between each markers are calculated and displayed on the screen in the unit system you specified. With the pro version you can place more than 2 markers and even get the area of the space surrounded by the markers.