DatenZähler
Data counter shows the data volume used as a regularly updated widget on the start page. The app only works in the D1 mobile network of Telekom and partially in the D2 Vodafone network . So for T-Mobile, congstar, 1 & 1 (and klarmobil with D1 contract, debitel-light, easyTel, ja! Mobil, Mobilka, L