Bad! Worse! The worst!
Bad: "You do by app and you get 1 points out of each 1 pence."
Worse: App didn't install and activate easily, operators don't know which menu to choose on their machine. And always a need to pay a fraction change to keep your points intact.
The worst: queue doubles length when a student wants to pat by this app. Operators justify the case announcing this client is to make points. Changes required even at this session? Yes. Operator is about to get double of price, because in the wrong menu again.
My advice: Never top up this app.
Never install this app.