MagVR is an iOS and Android app that acts as an electronic magnifier: look around with your device and 3D viewer or headset (e.g. Google Cardboard) and you will see a magnified view.
You can change the magnification by tapping on the screen to cycle through the magnification levels. Your viewer or headset will probably have a button that allows this – for example, you can use the trigger on a Google Cardboard viewer.
For more control, connect a (wireless) gamepad to your iOS/Android device:
- Forwards and backwards on the gamepad controls the magnification (zoom) level.
- Left and right moves through a range of available colour and contrast enhancements.