UB TAN is a free Android app developed by UmweltBank AG for secure and comfortable transaction approval in online banking. With UB TAN, you can approve your transactions on your mobile device without needing to search for TAN lists. The app provides an additional layer of security by requiring access protection.

To use UB TAN, download the app on your phone or tablet and activate it once through UmweltBank's online banking. The activation process is straightforward, and you can find more information about it on the UmweltBank website.

UB TAN offers several benefits, including the convenience of approving transactions on your mobile device, higher security, and flexibility in handling your bank transactions anytime. It is essential to note that you should only install the app if you use UmweltBank's online banking services.