It almost pains me to write that title. I make apps to help students, I have about 12 of them on both Google and Apple and they are pretty good. None of them are the one I am talking about here though. Here is is all about Teach Your Monster to Read made, and made really well, by Usborne in the U.K. The links are all at the bottom for the app and website.
The Oculus Rifts and Quests baby brother holds it head way above what came before it, and showcases VR in a more affordable all in one package. Does this make is more accessible to schools and classrooms?
The answer to this is impossible to give generically, though its not gonna stop me trying, it will depend on budget, purpose, space and much more
Students are unlikely to remember the test they were set 10 years ago, but they are definitely going to remember the time they turned round in a chair in a classroom and came face to face with a dinosaur.
That was nearly four years ago. I still use it for exactly those reasons.