ZapWorks, Zappar's primary product, is a development environment for using 3D models with animation and image tracking tools to create many types of experiences. The output of that development process is designed for augmented, mixed, and virtual reality uses on mobile devices and head-mounted displays.
The ZapBox, the augmented reality version of Google Cardboard, uses an external camera to project the outside view of the user to the phone being used. This is designed to simulate an augmented reality experience far less expensive than any of the standalone AR devices out on the market at the moment.
See the full story here; https://hololens.reality.news/news/zappar-goes-from-84-000-kickstarter-3-75-million-series-funding-for-mobile-ar-0176332/