Can your AR tool do the following, now, or soon, or never:

1) Let the user open our app, and within our app we can call your service/API or URL. Then your system checks the users lat/long, and based on that triggers the predefined AR to show.

2) Let the user open our app, and within our app we can call your service/API or URL. The the users opens the camera within our app, and points it at a location/photo/landmark. We would map key elements of each AR in your system, so that your system could match what the user is looking at to one of the AR we have upload.

Basically we have lots of users, going to the same locations, but we have no way to put a QR code at that location, and want it to work as easy as possible.