Simple free application that provides classic approach of measuring (on-screen ruler) and last technologies (ARKit).You can easily measure walls,windows, doorways or any other stuff.
How to use:
Make sure room is well lit and surfaces to measure a clearly visible;
Point camera on any surface and drag until detection;
Use it as a ruler :
Measure width, height, length of objects;
Switch to measure the area;
Click finish to see the results;