Contactless payment is strongly encouraged. Initially, this was mainly done via Payconiq, but nowadays it is primarily done via your banking app. What systems exactly exist? Are they safe and how do they work? In this session, we will look together at which apps you need and how you can use them safely. We will list the pros and cons. In addition, we will also focus on (loyalty) cards. You can store (loyalty) cards and tickets digitally in a reliable iOS or Android app. There are also banks that allow you to store (loyalty) cards within their payment app. We will test this out together.