If you have iOS 11 and above you can simply:
- Open the camera app from your device’s home screen, control centre, or lock screen
- Hold your device so that the QR code appears in the camera app’s viewfinder. Your device recognises the QR code and shows a notification
- Tap the notification to open Mettle and approve access
If you aren’t on iOS 11 or above you can use any QR code scanner and it will work in the same way.
If you don’t already have a Mettle account you can get one at mettle.co.uk.