Unzer
Unzer provides payment services and point-of-sale software for retailers, restaurants and online businesses. The product range combines online checkout, payment terminals, cash register software and payment methods such as cards, wallets and invoice purchases. Merchants use these tools to accept payments and manage sales across their different channels.
Businesses need these tools to accept customer payments and manage sales across their website and physical premises. Unzer offers shop integrations and a central payment platform, with fraud-management tools for online transactions. Point-of-sale products also support daily operations such as restaurant orders or appointment bookings.
Payment services for merchants
Unzer provides payment and commerce software for merchants. The group reports 90,000 merchants across its key European markets, more than 40 payment methods, €225.0 million in revenue and €18.5 billion in processed transaction volume for 2025 (Unzer Group). The business began as heidelpay in 2003 and adopted the Unzer name in 2020 (IT Finanzmagazin, in German).
One platform for the store and the web shop
Online, Unzer offers a preconfigured payment page, SDKs, a REST API and plugins for shop systems, plus in-app payments and pay by link. In the store it sells the POS Go terminal and an iPad cash register, and for buy now, pay later a white-label option (Unzer). A merchant that sells in both channels sees its sales from both in one place. Ecommerce payments in Germany covers which methods German shoppers choose online.
Wero at the checkout
Unzer lists Wero among its payment methods next to Visa, Mastercard, PayPal and Apple Pay, and the European Payments Initiative names Unzer among the acquirers and partners for Wero e-commerce in Germany (EPI). Wero moves money between bank accounts on instant transfers, without a card scheme in between. Wero payments in Germany covers the banks and providers behind it.
Upcoming payments events in Europe
Payments & Digital Money
Risk & Compliance
What is Unzer?
Unzer is a payment and software provider for merchants in Europe, for stores and web shops. Unzer counts 90,000 merchants.
Does Unzer offer Wero?
Yes. Unzer lists Wero among its payment methods, and the European Payments Initiative names Unzer among the acquirers and partners for Wero e-commerce in Germany.
Is Unzer the former heidelpay?
Yes. The heidelpay business, founded in 2003, has operated as Unzer since 2020.
Checkout and account payments
Unzer and Finance Loop
Finance Loop covers the checkout and Wero in its Payments & Digital Money track.
Marketing teams explaining a combined store and online checkout can discuss relevant merchant audiences and expert conversations with Finance Loop. Frame an inquiry about payments partnerships around the retailer segment and acceptance questions that your company wants to address.
Finance Loop is a European professional network for emerging technologies in finance, with Central Europe as the current regional focus. Finance Loop helps members build skills and professional relationships across these fields: Investment & Digital Assets, Payments & Digital Money, Digital Infrastructure & Sovereignty, and Risk & Compliance.