Digital stamp card & loyalty program

Turn walk-in customers into loyal regulars.

The digital loyalty program for your business. Set up in 5 minutes. Your customers scan the QR code on the receipt and collect points.

No credit card neededSet up in 5 minutesGDPR compliant
GDPR compliantHosted in GermanyMade in GermanyNo app needed (PWA)In real use: 'n Eis zapfen

Born at the counter

The paper punch card had its day

Treuli turns the receipt your till already prints into a loyalty program. No digging through wallets, no lost cards. And you finally see who keeps coming back.

Paper gets lost

Crumpled, washed out, forgotten at home. And the card never tells you who your regulars actually are.

Your receipt can already do this

Your till prints a QR code on every receipt (TSE/RKSV). Your customers scan it with their phone. That's all that happens at the counter.

Points add up on their own

€7 becomes 70 points, credited right after the scan. You decide how much a euro is worth.

Treuli vs. traditional paper cards

The honest comparison. See what matters to you.

The honest comparison. See what matters to you.
FeatureTreuliPaper card
Always at hand on the smartphoneYesNo
Works without installing an appYesYes
Points straight from the receiptYesNo
You see who comes backYesNo
Promotions & newsletters for regularsYesNo
Referrals get rewardedYesNo
Customer data safe & GDPR compliantYesNo
Gets lost or ends up in the washing machineNoYes
Printing and material costsNoYes

How it works

For your customers: scan, collect, redeem

Four steps, all in the browser. This is what Treuli looks like on your customers' phones, with your logo and your colors.

Scan the receipt

Scan the receipt

Scan the QR code on the receipt with the phone camera. Right in the browser, no app.

See the points

See the points

Points balance, rank and the way to the next reward: all at a glance.

Pick a reward

Pick a reward

Browse your rewards: a discount, a free coffee, or whatever you come up with.

Redeem at the counter

Redeem at the counter

Choose the reward, show it, done. The points are deducted automatically.

And for you

Ready in 3 steps

From sign-up to the first QR code. No IT knowledge, no outside help needed.

Step 1

Register

Create an account, 14 days free. No credit card needed.

Step 2

Configure

Upload your logo, pick your colors, create two or three rewards, register your POS.

Step 3

Let's go

Your POS already prints the QR codes on receipts via TSE/RKSV. Treuli now recognizes them as yours. Customers scan, collect, come back.

All the tools

Everything in there so your program actually runs

Not more, not less. What cafés, salons and shops really need.

QR Code Scanning

Your POS's QR codes (TSE in Germany, RKSV in Austria) are recognized by Treuli after a one-time registration. Customers scan, get points. Works in the browser, no app store needed.

Rewards System

Discounts, free coffee, vouchers. You decide what your customers can redeem.

Referral Program

Every customer gets their own link. Share it and both sides get points.

Detailed Statistics

Who comes regularly, which rewards are going out, how many points are in circulation? It's all in the dashboard.

Campaigns & Newsletter

Emails to all customers or to specific groups. Plus in-app notifications for promotions.

Digital Menus & Catalogs

Menu, product catalog or service list via QR code. No app download, no print shop.

Apple & Google Wallet

The loyalty card moves into the wallet on the phone. It sits right next to train tickets and boarding passes.

Push notifications

Your promotions appear right on the lock screen. Every customer decides for themselves whether they want that.

New Add-on

Appointment Booking

Your own booking page with services, staff and calendar. Automatic email reminders to cut no-shows.

After closing time

The shop is closed. Your loyalty program keeps working.

Points book themselves, rewards wait for the next visit, and your dashboard collects the day's numbers. You check in whenever you like.

Rewards, customers, campaigns, locations: all in one place. The dashboard shows you live what your program is doing right now.

  • Live numbers and revenue reports
  • Manage rewards & bonuses
  • Send email campaigns
  • Customers and transactions at a glance
  • Customize branding and colors
  • Manage multiple locations
admin.treuli.app
Treuli admin dashboard
Treuli customer app

Made for 8 industries

Ice cream shopsBakeriesCafesRestaurantsRetailHairdressers & BeautyFlower shopsFitness & Wellness

Your industry not listed? Contact us. Treuli works for every local business.

56%

spend more

of loyalty members actually spend more because of their program.

Source: Deloitte, Reshaping Customer Loyalty Programs (2025)

n = 5,564 US loyalty program members

82%

in loyalty programs

of German consumers are enrolled in at least one loyalty program.

Source: KNISTR × ECC Köln, Retail Loyalty Study 2024

n ≈ 1,000 consumers + 162 retailers, Germany (July 2024)

faster growth

Loyalty leaders grow at better than twice the average for their industry.

Source: Bain & Company, Leading with Loyalty

Net Promoter leaders vs. industry average

52%

stay loyal

keep buying from their favorite brand, even if a rival is cheaper and more convenient.

Source: KPMG, The Truth About Customer Loyalty (2019)

n > 18,000 consumers worldwide

Industry study · individual results may vary

What does it cost?

Start from €0

Free to try it out, Starter once things take off. No fine print, no minimum term.

Free

Customers10
Rewards5
Locations1
per month€0

For trying it out in real operation. No credit card needed.

Starter

Customers250
Rewards20
Digital menus1
per month€39

Try free for 14 days, cancel monthly.

Case Study

A real story of how local shops work with Treuli.

'n Eis zapfen logo

'n Eis zapfen

Gastronomy & Ice Cream

An ice cream shop in Central Saxony with its own self-serve concept. With Treuli, guests collect points, redeem rewards and stay in the loop via the app across all three locations.

Treuli Loyalty Program3 locations connectedDigital customer loyalty
Read the case study

Rather watch?

Treuli in just over a minute

From receipt scan to dashboard: the video shows how Treuli works in your shop.

Frequent questions

Answered briefly

What shop owners ask us most often. Straight answers.

No. Your till already prints the required QR codes on every receipt (TSE in Germany, RKSV in Austria), and your customers use their own smartphones. No tablet, no scanner, no terminal.

No. Treuli is till-independent: it uses the QR codes your till prints anyway. No interface, no POS technician, no change to your routine.

Practically none in day-to-day business: points are credited automatically when customers scan. Only when someone redeems a reward do you confirm it briefly. The rest runs in the background.

Nothing. Treuli runs in the browser: scan the QR code, collect points, done. Anyone who likes can add the card to their home screen or to Apple or Google Wallet.

Treuli is hosted in Germany and GDPR compliant. Your customers' data stays yours. It is never sold on and can be exported or deleted at any time.

Getting started is free: up to 10 customers collect points on the Free plan. More room starts at €39 per month. Try it free for 14 days, no credit card, cancel monthly.

The people behind it

From Chemnitz, with a direct line

Treuli is built and looked after by Gläser IT-Solutions in Chemnitz. No corporation, no call center. When you call or write, the person who builds the software answers.

Treuli grew up in real shop life, together with 'n Eis zapfen, Saxony's most creative ice cream parlor. Whatever doesn't work at the counter gets cut.

Gläser IT-Solutions

Daniel Gläser

See the legal notice

Start today, collect points next week

14 days free. If it's not for you, just don't renew.