I've been running a small bakery and pastry shop in the Paris suburbs for four years. Up until now we've used classic paper punch cards: buy ten coffees or ten baguettes, get one free. But most customers forget the card at home lose it, or just don't want to carry it in their wallet. Printing around 450 cards every month is also a small but ongoing expense not to mention a waste of paper.
I've seen digital loyalty card apps online that are completely free or very low-cost. The customer adds the card to their phone's digital wallet, and we scan a barcode or QR code at checkout. It sounds super modern and convenient but does it actually work at the scale of a local mom-and-pop shop?
Could collecting phone numbers or email addresses get us into trouble under French data protection laws? Will it cause bottlenecks if customers dont want to bother filling out forms while waiting in line at the register? Id love to hear from anyone whos made the switch.