Tan Tan is a free Android application developed by Tan Tan Solutions that allows for seamless payment and credential management. The app's interface is simple, yet effective, making it easy for users to navigate and complete their transactions quickly.

The primary feature of Tan Tan is its ability to manage payments through QR codes. Users can easily scan the code to complete transactions, eliminating the need for cash or card payments. Additionally, the app allows for the storage of credentials for events and institutions, making it convenient for users to access important information when needed.

Overall, Tan Tan is a great tool for those looking for a simple and efficient way to manage their payments and credentials on their Android device. The app is compatible with Android 13.0 and is a must-have for anyone looking to streamline their financial and administrative tasks.