Tracker-based AR is a type of AR experience which requires a tracking image to be used as a reference on which the digital content will be displayed. A tracker image can be anything, as long as it has enough unique visual points. This types of AR experiences are supported by almost all the mobile devices with a single/double high resolution camera.
In marker/tracker based AR campaigns, the experience is created over the marker/tracker image through the Evolve CMS. Once your campaign is published, viewers can scan the same image with Evolve AR application can view your created experience.