EU sovereignPaymentsHeadquarters: CH

zahls.ch: sovereignty score and 8 European alternatives

zahls.ch is a Swiss payment platform for online shops, payment links, invoices and in-person sales. It supports TWINT, PostFinance, Visa and Mastercard and offers branded payment pages, invoices with a QR code, donation forms, a digital terminal for card payments taken by phone, recurring payments and payouts. Plugins exist for shop systems such as WooCommerce, Shopware and Magento, and developers get a REST API with webhooks. Merchants register online and use it as a service.

zahls.ch is a service of siebenberge gmbh in Neu St. Johann, Switzerland, an EFTA country with an EU adequacy decision. Its privacy statement is based on the Swiss Data Protection Act, and a data processing agreement can be generated online. The site does not state where the platform is hosted or which partners handle card and TWINT transactions, so ask about hosting, sub-processors and settlement flows. No foreign parent company is named. There is no self-hosted option; check the contract for data location and subcontractors.

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Sovereignty score

67 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in Switzerland: Swiss law, recognised by the EU as adequate
Data residency SOV-380
Hosting in Switzerland only (recognised by the EU as adequate)
Cryptographic key sovereignty SOV-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-655
Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 14, 2026

Headquarters	CH (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	CHVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Payments
Type	Product
Website	zahls.ch ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to zahls.ch

The European alternatives to zahls.ch come from our knowledge base of over 9,200 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

113 European Payments vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with zahls.ch

zahls.ch is headquartered in Switzerland and falls under Swiss law, including the revised Swiss data protection act. Switzerland is not an EU member, but the European Commission recognises its level of data protection as adequate. Its Swiss headquarters does not by itself bring it under US legislation such as the CLOUD Act.

zahls.ch hosts data in Switzerland only. Switzerland is not part of the EU or the EEA, so the GDPR does not apply there directly; the European Commission does recognise Swiss data protection as adequate, so personal data can go there without extra safeguards. Our model therefore scores it between EU hosting and hosting outside Europe. If you require strictly EU hosting, take this into account.

zahls.ch is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs zahls.ch together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to zahls.ch?

It depends on your use case. Strong EU alternatives to zahls.ch include Adyen, Alma and Amiko. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to zahls.ch?

Our list of EU alternatives to zahls.ch is mostly commercial options. Browse the category on the map for open-source choices.

Is zahls.ch GDPR-compliant and where is the data hosted?

zahls.ch is headquartered in CH (EFTA) and hosts data in CH. That makes zahls.ch an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 14, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

In the changelog

Earlier changes to this page, as listed in the public changelog.

256 more Swiss software makers (October 14, 2026)

Digital sovereignty in Payments

Payments: Payment services, payment gateways, online payments and financial transactions. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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