People wait in line for the Google I/O 2015 developers conference / EPA

Headset can be made for a few pounds, and gives people access to virtual reality using phone’s screen

Google is releasing its Cardboard virtual reality headset for iPhone, as part of its push towards VR.

The company released Cardboard last year – a piece of cardboard that uses velcro to cheaply attach a phone to people’s face, letting them experience a version of virtual reality. But it has now moved to it iPhone, as well as releasing a new version of the headset that is easier to assemble and fits bigger Android phones.

The company also released "Jump" – a special camera rig and software that allow people to make their own virtual reality films. VR requires people to stitch together a full 360-degree film, and the tools allow people to put together a set of cameras on one rig and then stitch those videos together.

GoPro will also make a special camera array that means that people will be able to film full 360-degree videos. That new camera will be fully compatible with Google's software.

iPhones have always fit into the cardboard headset. But Google has now moved its development kit – the tools that designers use to put things into the headset – will now work on iOS as well as Android.

Google released the Cardboard updates alongside new experiences for its virtual reality tools. Those includes “Expeditions” – a full setup that allows whole classes to go on school trips using the tools.

Expeditions give schools a class-worth of cardboard headsets and phones, and give the teacher a tablet to control the experience. Students can then all go and look around a virtual recreation of different places, Google said.

Videos using the Jump framework will also be put on YouTube.

The company said that Cardboard for Android had been a huge success, with over 1 million people using the technology.

Google said that the virtual reality plans were part of a broader focus on bringing the real world to people.