in Central and Eastern Europe
of B2C mobile app “żappka”
After a remarkably successful launch, the żappka app quickly gained the appreciation of Polish users. More than 3 million people were already using it to take advantage of personalized promotions and discounts, collect points, and exchange them for rewards.
Żabka realized that introducing a proprietary payment system could benefit both the company and its customers. Żappka Pay would make it much more convenient to identify users and apply discounts and rewards to their accounts upon purchase.
We knew that building Żappka Pay would require us to integrate multiple complex systems: the payment provider (First Data), Żabka’s POS system, and the mobile app itself.
After gaining a sufficient understanding of their interdependencies, we designed the key element that now combines all these systems: Payment Gateway & API.
Only after complete technical analysis did we proceed with the actual backend development.
We chose to build it in Django. The framework is not only popular but also universal and proves to be a good choice whenever an integration of multiple systems is involved.
In this case, the main purpose of Payment Gateway is to support the activities revolving around tokenizing cards and authorizing users based on the PIN code or biometrics.
leveraging best practices and solutions that impede so-called man-in-the-middle attacks during communication with the device. Specifically for Żappka Pay, First Data Polska made it possible to:
While developing the UI, we focused on ensuring seamless user experience and ultimate reliability.
We achieved that by implementing a range of innovative solutions that enable features like:
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