Applications using augmented reality like HP reveal can be used in ELT especially to get the attention of young learners. For example; while they are learning the words for animals they can also get their phones out and by scanning the animal pictures they can see the 3D images of those animals. This helps teachers get the attention of the learners and it is important in terms of its function to integrate language learning and technology.
I strongly advise you to have a try 😊.