Hello everyone. Proud of this app since developers can detect horizontal surfaces out of the box, but not vertical ones. It was a fun challenge.
With this app you can add your pictures from your phone to the wall to see what size they should be and what position. It gives measurements in inches and meters.
It also includes adaptive lighting, and with unlocks you can add a virtual frame and add more than one image at a time, to experiment with gallery walls and such :)