The complete guide to digital loyalty cards for UK merchants

Why loyalty matters

Acquiring a new customer costs five to seven times more than retaining an existing one. For local businesses, this statistic is especially important. Your regulars are your revenue. A loyalty programme turns occasional visitors into committed customers.

The psychology is straightforward. People are more likely to return to a business where they are making progress toward a reward. It is called the endowed progress effect — once someone has started collecting stamps, they feel invested in completing the card.

Paper vs digital

Paper stamp cards have been around for decades, and they work. But they have significant limitations. Customers lose them, forget them at home, or end up with a wallet full of cards from different businesses. You have no data on who your loyal customers are or how often they visit.

Digital loyalty cards solve all of these problems. The card lives on the customer's phone. It cannot be lost or forgotten. You get data on visit frequency, completion rates, and customer behaviour. And it costs nothing to run — no printing, no card stock, no physical stamps.

Setting up your card

A good loyalty card has three elements: a clear reward, a reasonable number of stamps, and a simple collection method.

The number of stamps should feel achievable but meaningful. Eight to ten stamps is the sweet spot for most businesses. Fewer than six feels too easy. More than twelve feels like it will take forever.

The reward should be genuinely valuable to your customers. A free coffee, a discount on their next visit, a bonus product. The reward is your marketing cost — it needs to be attractive enough that customers actively pursue it.

Driving repeat visits

The real power of a loyalty programme is in the follow-up. When a customer is three stamps away from a reward, they are highly motivated to come back. This is where digital cards shine — you can see who is close to completing their card and nudge them with an offer.

Place your QR code at the point of sale. Make it part of the checkout experience. "Have you collected your stamp today?" becomes a natural question. Over time, it becomes a habit for your customers.

Choosing your reward

The best rewards are specific and desirable. "Free coffee" is better than "10% off." "Buy 8 get 1 free" is clearer than "loyalty discount." The more concrete the reward, the more motivated your customers will be to collect stamps.

Consider your margins. The reward should cost you less than the profit from the repeat visits it generates. A free coffee that costs you one pound but drives eight paid visits at three pounds profit each is an excellent trade.

Getting started

Setting up a digital loyalty card takes minutes, not days. With Crige, you choose the number of stamps, describe the reward, and your card is live. Customers scan your QR code to start collecting. No app download required, no hardware to install.

Start with a simple card, see how your customers respond, and adjust from there. The data will tell you what works. Most businesses see a noticeable increase in repeat visits within the first month.