With a TWINT QR code, food trucks, street food stalls, and market vendors in Switzerland can accept cashless payments – without a card terminal, without monthly fixed costs, and without their own internet connection on site. The Comerciante prints out a QR code sticker and sticks it visibly on the stall. The customer scans the code with the TWINT app, enters the amount, and confirms the payment via their own mobile network. The transaction fee is 1.3% of the amount – with no minimum fee per transaction.

This guide shows you step-by-step how to set up TWINT QR for your mobile stall, how static and dynamic QR codes differ, what costs are incurred, and which pitfalls you should be aware of.

1. Why TWINT QR is perfect for food trucks and market stalls

With over 6 million active users, TWINT is the most widely used mobile payment app in Switzerland. For mobile points of sale such as food trucks, snack vans, weekly market stalls, or festival stands, the TWINT QR code sticker offers several tangible advantages over traditional card terminals.

Firstly, the entry barrier is extremely low: you need neither a physical terminal nor an acquirer contract for card payments. Registration takes place directly in the TWINT Comerciante portal or via a payment service provider (PSP) such as Payrexx. Secondly, there are no monthly fixed costs and no rental fees – you only pay per transaction. Thirdly, as a Comerciante, you do not need your own internet connection at the stall. The QR code is a printed sticker; the connection runs via your customer's smartphone. This is a crucial advantage, especially in locations with poor Wi-Fi coverage – festivals, outdoor weekly markets, mountain regions.

Added to this is the high level of acceptance: around 77% of stationary points of sale in Switzerland already offer TWINT. Your customers know the process and trust the app. For many market vendors, the TWINT QR code sticker is the first cashless payment format ever – and often the only one they actually need.

2. Static QR sticker vs. dynamic QR code: What is the difference?

A static QR code refers to a QR sticker that is permanently attached to the stall and does not change. The customer scans the code and enters the amount to be paid themselves in the TWINT app. Alternatively, the sticker can be configured for a fixed amount – for example, EUR 5.00 for a coffee.

A dynamic QR code, on the other hand, is generated anew for each transaction – typically via a cash register system or POS software. It already contains the exact amount within the code, so the customer only needs to confirm. Dynamic QR codes require technical integration (e.g. via a PSP such as Payrexx, Worldline, or SIX) and are suitable for businesses with a higher transaction volume.

For most food truck operators and market vendors, the static QR sticker is the pragmatic choice: no setup, no running costs, ready to use immediately. Those who use a cash register system or prefer not to have amounts entered manually opt for the dynamic QR code.

3. Setting up TWINT QR via Payrexx

You can obtain your TWINT QR code in two ways: directly via the TWINT Comerciante portal (twint.ch) or via a payment service provider. The direct route via TWINT is simplest if you exclusively want to accept TWINT payments. Via a PSP like Payrexx, you additionally obtain the possibility to offer, alongside TWINT, card payments (Visa, Mastercard), Apple Pay, Google Pay, and other payment methods via the same QR code.

Route 1: Directly via TWINT

Register in the TWINT Comerciante portal at twint.ch with a Swiss mobile number. After verification, define your QR code sticker (variable or fixed amount) and you can download it as a digital file or order it as a weatherproof sticker. The stickers usually arrive within 48 hours.

Route 2: Via Payrexx (QR Pay)

Create a free Payrexx account, activate TWINT among the payment providers, and navigate to  QR Pay. There you generate your QR code – with an open, fixed, or minimum amount. The QR code can be downloaded as a PNG, SVG, or as a print-ready poster. Payrexx additionally offers weatherproof stickers and table stands (first order free of charge). The advantage: your QR code works both with the TWINT app and directly via the smartphone camera – allowing even tourists without the TWINT app to pay.

4. Enter amount, scan, done: The payment process from the customer's and Comerciante's perspective

Customer perspective (static QR sticker, variable amount)

The customer opens the TWINT app on their smartphone and taps "Pay". They point the camera at the QR sticker on the stall. The app recognizes the code, displays the Comerciante's name, and prompts for the amount to be entered. The customer types in e.g. "12.50", confirms with "Pay", and immediately sees a confirmation. The entire process usually takes less than 15 seconds.

Comerciante perspective

As a Comerciante, in the simplest case you do not need to do anything – the sticker works for you. As soon as a payment is received, you get a push notification on your smartphone (TWINT Business Portal App). With a fixed QR sticker (e.g. EUR 8.00 for a menu), a quick look at the customer's confirmation screen is sufficient. Alternatively, you check the receipts in the TWINT Business Portal App or on the web portal.

When using a PSP like Payrexx, the payment runs via the Payrexx payment page. The customer scans the QR code with the TWINT app or with the smartphone camera, selects TWINT as the payment method, confirms, and receives a confirmation. You see the transaction in your Payrexx-Dashboard.

5. Costs and fees: What TWINT QR costs for small amounts

The fee structure for the TWINT QR sticker is deliberately kept simple. With a direct registration via twint.ch daily, you pay 1.3% per transaction – with no monthly fixed costs, no minimum fee per payment, and no setup fee. This makes TWINT QR particularly attractive for micro-amounts: for a coffee for EUR 5.00, the fee is merely EUR 0.065 – which is around 7 cents.

For comparison: with debit card payments via a physical terminal in Switzerland, depending on the provider, fixed fees of EUR 0.10–0.25 per transaction plus a percentage share typically apply. For a EUR 5.00 purchase, the terminal fee can thus easily amount to over 5% of the value.

The table shows: for small amounts, as they are common at food trucks and market stalls, the TWINT QR sticker is the cheapest cashless payment method – especially because no terminal rental is incurred.

6. Limits and pitfalls: Daily limits, failed scans, refunds

Amount limits

A single transaction via the TWINT QR sticker with a variable amount may not exceed EUR 5000. For a sticker with a fixed amount, the upper limit is EUR 200 per sticker. In practice, this is not an issue for food trucks and market stalls – typical transactions range between EUR 5 and EUR 50. On the customer side, the daily and monthly limits of the respective bank app additionally apply. With the UBS TWINT app, for example, the standard daily limit is EUR 3000.

Failed scans

Scanning problems occur most frequently when the QR sticker is damaged, dirty, or faded due to sunlight. Therefore, order weatherproof stickers and place them so that they are protected from direct sun and fat/steam splashes. Too low a screen brightness on the customer's side can also make scanning difficult. For persistent problems: download the QR code again in the Comerciante portal or PSP Dashboard and reprint.

Refunds

You can trigger refunds directly via the TWINT Business Portal App – as a full or partial refund. The amount is booked back to the customer's linked account. Via a PSP like Payrexx, you trigger refunds in the PSP Dashboard. Note: refunds via TWINT are limited in time (typically 180 days after the transaction).

Common pitfalls

A practical pitfall: with a static QR sticker with a variable amount, the customer types in the amount themselves. Typing errors happen – e.g. EUR 1.25 instead of EUR 12.50. Make it a habit to check the customer's confirmation screen briefly before handing out the product. With a QR sticker with a fixed amount, this risk is eliminated, but you need a separate sticker for each product.

7. Checklist: Getting the TWINT QR code ready for your food truck or market stall

• Decide: TWINT QR directly via twint.ch or via a PSP (e.g. Payrexx) – depending on whether you only want to accept TWINT or additionally cards and wallets.

• Register in the TWINT Comerciante portal or with the PSP of your choice. You need a Swiss mobile number and a Swiss bank account (IBAN).

• Select the sticker type: Variable amount (customer types themselves) or fixed amount (e.g. EUR 8.00 for a daily special).

• Order weatherproof QR stickers or print out the code in a laminated format. Tip: take at least two copies as a backup.

• Place the sticker clearly visible at the eye level of the customers – ideally next to the menu or at the checkout counter.

• Install the TWINT Business Portal App on your smartphone and activate push notifications for incoming payments.

• Test the QR code before the first use with your own smartphone and a micro-amount (e.g. EUR 0.10).

• Set up an e-mail notification for incoming payments as a second channel – useful as a backup in case your smartphone has no reception.

• Inform your team about the process: Where is the sticker? How do I check the receipt of payment? How do I trigger a refund?

• Have a replacement sticker and enough change ready – not every customer has TWINT, and cash remains a backup.

8. How you can create your TWINT QR code with Payrexx

Payrexx offers with QR Pay a solution that goes beyond the pure TWINT sticker. You create a QR code in your Payrexx account that can be scanned both by the TWINT app and by a smartphone camera. This means:

In addition to TWINT, you also accept Visa, Mastercard, Apple Pay, Google Pay, and other payment methods via the same code. The TWINT transaction fee is 1.3%. The QR Pay tool is already included in the free Free plan.

Weatherproof stickers and table stands can be ordered directly via the Payrexx-Dashboard – the first order is free of charge.