BILDconnect Servicewelt is a free Android app developed by Drillisch Online GmbH that helps you manage your mobile tariff with ease. With this app, you can access all the important information related to your tariff, such as your bills, tariff options, and data updates. You can also stay up-to-date with current promotions and tariff highlights.

The app allows you to easily update your personal customer data, view your bills on the go, switch tariffs, activate or deactivate additional options, and even unlock or lock services while on the move. In addition, the app offers a variety of features, including ordering a replacement card or a multi/ultracard, accessing help via the FAQ section or contact form, and retrieving settings for your smartphone, such as internet usage.

Please note that the availability of the BILDconnect Servicewelt app cannot be guaranteed at all times.