TAN Manager helps you to organize your Transaction authentication number's (TAN, T.A.N) for banking and take them with you wherever you are.
TAN Manager uses 256Bit AES encryption to make sure, your TAN's are safe and only accessible by you.
You need to enter a password before you can access your TAN's. If you ever forget your password, there is no chance to get access to your TAN's.
The free version of TAN Manager will display ads, for this reason the internet permission is needed. TAN Manager will only use the internet connection to display ads, no TAN's will be send to a server.
If you want to be sure about that, purchase the paid version which don't need any internet permission to run.