Hi
To use the Mobo app you'll need a smart phone with a camera. On an Android you also need an app to scan QR codes, I recommend QuickMark. (I'm not sure of the set-up for Apple and Windows phones.) At each control you will have to scan a QR code (a 2D bar code). Currently, the codes are not fixed to the control posts. I can email you the codes, which you can print, carry around and scan when you get to the control post.
Regards,
Steve