Search Q&A
Loyalty cards in smartphones
Yes, look at SEQR (you get a small percentage cashback if you pay at a shop using your SEQR app on your phone).
QUSTOMER - like a traditional digital loyalty card on your phone, you get a free sandwich or meal after you've paid for so many.
There are others around too, but they're the ones I use. It's a tiny market just yet.
Yes, SEQR works in Colruyt - between 1 and 3% depending on how many purchases you make per month.