Gallery AR is a free iPad app and free iPhone app that anyone can use to view classic works of art in augmented reality. The app features art work that was digitized by The Art Institute of Chicago.
Gallery AR digitally displays works of art on your walls when you point your phone or iPad at it. Works appear to be chosen at random, but you can swap them out with another work by tapping the reset icon in the app. You zoom in on the art work by walking closer to the wall in front of you.
In my testing of Gallery AR I found it to be a bit sensitive to changes in lighting. In fact, the app didn't display anything until I turned on every light in my office and opened the shades to let in sunlight. In fairness to the developer, I have the same problem with the augmented reality function in the Google Arts & Culture app.
Applications for Education
Gallery AR could be a nice app for art teachers to recommend to students who are currently at home and looking for a new way to experience classic works of art. The app is free and doesn't require any registration to use and doesn't offer any confusing in-app purchases.