We have one client who wants 60 different 3D models in one app with unique markers for each model. Is there a limitation in numbers of markers for Unity in one app? We are using Vuforia plug-in for this.
No personal experience, but according to their website, you can have up to 100 targets per device database. I read somewhere it is possible to have multiple databases on a device. Their cloud service greatly increases the number of targets you can recognize, but the detection speed goes from a few frames to a few seconds.
Thanks for the input. Looks like w´re safe for this project:-)