Is the cardboard app necessary for VR experience?

It is very useful for calibration, as it has been mentioned, and it also gives you a glimpse of what to expect. If we talk about VR content in general, in any platform, the cardboard app is not really necessary, but it is a really interesting entry point, one that may be widely available to show demos of VR experiences in other VR hardware setups. read more

You can use the app to set up your Cardboard experience. It also has some decent VR experiences all on its own. You can use Google Earth to fly around or take a trip to Versailles in virtual reality. Additionally, the app lets you view you videos, photospheres, and other VR content stored on your device. More importantly, it has a directory of VR apps and games that makes finding new stuff a lot easier. read more

In the summer of 2015, the company released the enhanced 2.0 viewer blueprint and added iOS support, launching the official Cardboard app and letting app makers bring their VR experiences to the App Store. read more