Begginer question:I want to add AR to my physical art exhibittion at a gallery and I have a question

Hey, a newbie question here! I would like to add AR effects to my physical artworks at an exhibition and was wondering about the AR part. Is it possible to use an existing app through witch my visitors can somehow get the experience or am I supposed to make my own app, put it on the appstore, wait for approval, and then the visitors are expected to download it. And is it possible to keep the AR experience only on the exhibition grounds or do my visitors have the AR part of the art whenever they go. (I only have 5 months but i believe i can make it … AReallity) Thanks!

Basically I want to create something like this: