finanzen.net zero Secure TAN is a free authorization app developed by finanzen.net zero GmbH for Android devices. The app is designed to enhance the security of transactions, transfers and other operations carried out on the finanzen.net/zero platform. It is not a trading app, but an authorization app to approve transactions on the finanzen.net/zero platform.

Users can register their mobile devices online and receive push notifications to authorize transactions. The app allows users to register multiple devices for additional convenience. The app is easy to use and provides a fast and secure way to approve transactions.

To use the app, users need to open a finanzen.net/zero depot account (if not already done) and download the finanzen.net zero Aktien & ETF trading app if needed. Then they can download the Secure TAN app and register their device in the security section of the depot management area. They will receive an activation code to scan and unlock the app to start using it.

Overall, finanzen.net zero Secure TAN is an excellent app for those who want to secure their transactions on the finanzen.net/zero platform. It is simple to use, fast and provides an extra layer of security.