Apps similar to Wallr include PLNAR, which is free. Other options are IKEA Place and Air Measure. In total there are three apps like Wallr for iPhone and iPad.
The PLNAR augmented reality App makes capturing dimensions of a room easy and fun. Now, anyone can create a floor plan with just their iPhone. No need to use a clunky tape measure or bring a stranger into your house to measure.
United States
From App Store: "IKEA Place lets you virtually 'place' IKEA products in your space. IKEA Place gives you an accurate impression of the furniture’s size, design and functionality in your home so you can stop wondering and start doing."
Netherlands
EU
Air Measure™ turns your phone into a ruler you can use anytime, anywhere. Just point your phone and click a point to measure almost anything. The app uses the power of Augmented Reality to measure the distance between points in 3D space.
