My Take
This app was surprisingly more reliable than the handheld digital scanners that I have used from other companies. Not all scans are perfect, but design never is. I really really like the AR dome that gets filled in to let you know where you still need to scan. It can be frustrating at times when certain areas won't fill in, but it is better than using a handheld scanner, doing your whole scan, and having to start from scratch when the scan doesn't come out right.
How I Use It
I used the Qlone app with 3rd-graders to create digital scans of fossils. We then used those scans to create molds by turning them into holes and grouping the holes with solid blocks in Tinkercad. We were able to 3D print the molds and pour plaster-of-paris into them to create casts of their fossils (use mold release spray!).