Google has shipped over 5m Cardboard headsets, served 25m VR apps

Google Cardboard may not be the most sophisticated virtual reality headset, but it’s definitely the most accessible. As such, it’s been a huge success, with more than 5 million units shipped to date, and over 1,000 Cardboard apps now available on Android. Cardboard was one of the first headsets to turn almost any phone into a VR