Stamp card for burger shops: Every 10th burger free
A stamp card for a burger shop is as old as the burger itself, only usually made of cardboard and usually lost before it's full. "Every 10th burger is on us" works as a promise anyway because everyone understands it instantly. With a digital stamp card in Apple Wallet or Google Wallet, the card stays with your customer, and you get a channel to message everyone who's ever visited you. Here's what mechanics work, what they cost you, and how to roll them out.
Visit frequency and average bill in burger shops
Burger shops sit between fast food and restaurant. The typical bill is €12 to €18 per person for burger, fries, and drink, higher for groups and evening guests.
Visit frequency among regulars is often every one to two weeks, for occasional guests every four to eight weeks.
The interesting number is food cost. A burger that costs €11 usually has a food cost of €3 to €4. That means: the reward "free burger" feels like €11 to the customer but costs you only a fraction of that. This gap is exactly what makes the stamp card so effective in a burger shop.
The right mechanics with example calculation
The basic rule: one scan per payment, regardless of how many burgers. It's fair, fast, and prevents a group order from filling the card in one evening.
- 10 stamps: One burger of your choice free. The classic. Nine paid visits, the tenth burger costs nothing.
- 6 stamps: Free fries. Quick to reach, costs you under a euro. Good as an entry-level reward.
- Double card: 5 stamps for drink, 10 stamps for burger. Two goals on one card. The customer gets an early win and stays until the big reward.
Example calculation for the classic: your burger costs €11, food cost is €3.50. The customer pays for nine visits at €15 per bill, so €135 total, and gets a free burger on the tenth visit. On the tenth visit they still order fries and a drink, so another €5 to €6. The reward costs you €3.50 in food cost. If the card brings the customer in just twice more per year, that's €30 extra revenue against €3.50 in rewards.
The double card makes sense if you have many occasional guests. A free drink after five stamps is a tangible goal for someone who only comes every four weeks. More on how many stamps make sense in How many stamps until the reward?.
Setup at till and pickup counter
In a burger shop there are two moments when the guest waits: when ordering and while waiting for their order. Both are perfect for the card.
- Display stand at the till. The QR code sits right next to the card reader. Your team says one sentence: "Scan the code and your 10th burger is free."
- Second display stand at the pickup counter. While waiting for their number, guests look at their phone. A display with "Every 10th burger is on us" and the QR code gets scanned without anyone needing to say anything.
- Card in Wallet. The guest scans, taps "Add," and the card is in Apple Wallet or Google Wallet. No download, no account.
- Stamp at checkout. The guest shows the card, your team scans it with their smartphone. Scan cooldowns prevent the same card being stamped twice in a short time.
- Redeem with one tap. Card full, your team sees it when they scan, the free burger gets redeemed in the dashboard.
stampa creates the display stand print-ready with your logo and colors. How to position it best is in QR code display stands at the till.
Automations for slow evenings
The paper card can only do one thing: collect stamps. The digital card can send messages that arrive as Wallet notifications on the lock screen. For burger shops, these four automations make sense:
- Slow-day booster. Monday and Tuesday evenings are quiet at many burger shops. "Tonight: double stamps on every visit" shifts traffic to slow times without cutting prices.
- Flash sale with time limit. New burger creation, too much bread delivered, rainy weather: "Today only until 9 PM: two burgers for the price of one." The message goes out in seconds. More examples in Flash sales: 15 examples.
- Win back inactive guests. Someone who hasn't visited in six weeks automatically gets a message with a small incentive, like an extra stamp on their next visit.
- Birthday offer. A free burger on their birthday often brings a whole group.
Marketing messages only go to guests who checked the marketing box when creating the card. The box is off by default and separate from the card, so consent is clean.
Common mistakes in burger shops
| Mistake | Better |
|---|---|
| One stamp per burger instead of per visit | One scan per payment, clearly communicated on the display |
| Reward only "classic burger" | "Burger of your choice" feels more generous and costs barely more |
| Display only at the till | Second display at pickup counter where guests are already looking at their phone |
| No messages in the first weeks | First flash sale after two weeks so guests learn about the channel |
| Paper cards running in parallel | Set a cutoff date, transfer old cards digitally for four weeks |
A common special case is delivery. If you deliver via platforms, decide in advance whether those orders earn stamps. Many shops deliberately reward only pickup and dine-in because there's no commission, and state this clearly on the display. How to word the rules so there's no confusion is in How to word stamp card rules.
What you'll see after four weeks
The live dashboard shows you active cards, stamps given, repeat visitors, and redemptions. stampa also compares a random control group of about ten percent of guests who get no promotions with the rest. You only see a number like "X additional visits" if the difference is statistically solid. If the data isn't ready yet, the dashboard tells you honestly instead of making up a nice number.
Conclusion
"Every 10th burger is on us" is a promise everyone understands and that costs you only a few euros in food cost per redemption. Digitally, the card stays with your guest, your team stamps by scanning, and you have a channel for flash sales and slow evenings. Effort at the till: one sentence and one scan. With stampa you can start for free, up to 100 active cards and no credit card needed.