Every receipt becomes a stamp
When the cashier closes a check in Poster, 7stamp can either add the stamp automatically in Receipt QR mode or wait for the cashier to scan the customer in Staff Scan mode.
Direct POS integration
Loyalty for Poster POS without an app or staff training
The 7stamp integration turns every receipt in Poster POS into a digital stamp card in Apple Wallet and Google Wallet. Customers join in about 15 seconds by scanning a QR code at the bottom of the receipt. No app downloads. No staff retraining. No POS development. Free Forever plan available.
- Installs in 2 clicks from the Poster marketplace
- Works fully automatically through Receipt QR mode
- Adds vouchers, which Poster does not have natively
- Free Forever for up to 100 card operations per month
What the Poster integration actually changes
Poster keeps doing the checkout, stock, and reporting. 7stamp adds the wallet loyalty layer on top, with the least possible operational friction.
Customers land in Apple Wallet or Google Wallet
There is no app to download and no password to remember. The card sits next to Apple Pay and Google Pay, so it stays visible in daily life.
Rewards run on top of Poster, not inside it
Poster handles the receipt. 7stamp handles the loyalty layer: stamps, vouchers, birthday gifts, reminders, and lotteries. Two systems, one customer experience.
Two ways to run loyalty inside Poster
Choose the mode that fits your counter. You can switch between them later in Poster settings without changing the customer wallet card.
Mode 1. Staff scans the card at checkout
Best for restaurants, salons, and premium-service businesses. The cashier opens the 7stamp panel inside Poster, finds the customer by QR, six-digit number, email, or name, and the stamp is added when the check closes. Reward alerts and active vouchers appear automatically on the payment screen.
Mode 2. QR code printed on every receipt
Best for cafes, bakeries, and fast-moving counters. A unique QR code is printed at the bottom of every receipt. The customer scans it with the phone camera and instantly gets the stamp. If they do not have the card yet, the wallet pass is offered right there.
Stamping rule: per receipt or per amount
1 stamp per receipt
Best for coffee shops, bakeries, and barbershops where the average check is stable and the goal is to bring customers back more often.
1 stamp per every N currency units
Best for restaurants, retail, and services with more variable average checks where you want the reward logic to also support larger orders.
Three reward types Poster cannot do alone
Poster already handles the receipt. 7stamp adds a reward layer on top that can issue instant gifts, real vouchers, and a wheel-of-fortune style lottery.
Instant gift
When the customer reaches the goal, Poster shows the cashier exactly which item to give away. The gift can be recorded through a zero-price promo item, a manual discount, or a Certificate payment method.
Smart Voucher
Poster as a POS does not support vouchers. 7stamp adds a full voucher system on top with issue, active, redeemed, and expired states, plus Redeem Codes that work at checkout.
Lottery
Turn the reward moment into a small game. Customers can spin for an instant gift, a voucher, an extra try, or no prize. The result appears on the Poster payment screen.
Why this matters beyond what Poster already does
Four capabilities usually sit outside the POS itself. That is exactly where 7stamp lives: above the checkout, but inside the real customer journey.
Voucher engine Poster does not have
Issue vouchers from marketing campaigns, birthday rules, manual goodwill, or printed inserts. Manage everything from one 7stamp admin panel.
Wallet push reminders, email, and messengers
Send return prompts directly to the saved wallet card, by email, or through WhatsApp, Telegram, and Viber integrations.
Delivery aggregator escape route
Print packaging inserts with unique QR codes that issue welcome stamps and move marketplace orders into your direct customer base.
Built-in loyalty analytics
Track redemption rate, customers close to the reward, per-staff performance, voucher usage, and birthday campaign results.
Pricing and install flow
Works with the Poster Free plan and beyond
The integration itself is free to install from the Poster marketplace. 7stamp starts with a Free Forever plan up to 100 card operations per month, then paid plans from EUR 29 per month per location.
- Step 1 Open joinposter.com/applications/7stamp and click Try, then Connect.
- Step 2 Open admin.7stamp.com and create an API key in Stamp Cards > API & Integrations.
- Step 3 Paste the API key into Poster > Functions > Applications > 7Stamp.
- Step 4 Choose the stamping mode: Scan card at checkout or Print QR on receipt.
- Step 5 Done. Start collecting customers.
Poster POS + 7stamp: frequently asked questions
Does Poster POS have a built-in loyalty program?
Poster POS has basic discount and promo code logic, but no built-in wallet loyalty, no voucher engine, and no customer push messaging. 7stamp adds all three on top of Poster without replacing it.
Is the 7stamp Poster integration free?
Yes. Installing the integration is free. 7stamp itself has a Free Forever plan for up to 100 card operations per month, then paid plans from EUR 29 per month per location.
How long does the Poster integration take to set up?
Around 5 minutes. Two clicks to install from the Poster marketplace, one API key to paste, and one mode to choose. No development required.
Will my cashiers need training?
In Receipt QR mode the cashier does nothing. In Staff Scan mode the cashier learns one action: open the 7stamp panel and identify the customer. Most teams pick it up in under 2 minutes.
Can I run vouchers through Poster with 7stamp?
Yes. 7stamp adds a full voucher engine on top of Poster. Vouchers can be earned by collecting stamps, issued manually, sent in campaigns, or given as birthday gifts. The cashier sees active vouchers as soon as the customer is identified.
How do I record a free gift in Poster reports?
Use one of three proven methods: a special zero-price promo item, a manual promotion, or the Certificate payment method. The full step-by-step is in the setup guide.
What happens if a customer takes a screenshot of a voucher?
Vouchers have a lifecycle of issued, active, redeemed, and expired. After redemption, the same code cannot be used again, even from a screenshot.
Does the integration work with delivery orders through Poster?
Yes. Print packaging inserts with unique 7stamp QR codes to issue welcome stamps to delivery customers and convert marketplace orders into your direct base.
Ready to launch