Attention: Check the compatibility list before installing! Currently DataTrackr only works with carriers in Germany.

E-Plus:
• 1&1, if you can see your used data volume on www.datatrackr.de/1und1-telefonica
• Alditalk, if you can see your used data volume on www.datatrackr.de/alditalk

All other Carriers, which operate in the E-Plus or Telefonica network aren't compatible with DataTrackr.

O2:
• Is supported, if you can see your used data volume on www.datatrackr.de/o2

All other Carriers, which operate in the O2 or Telefonica network aren't compatible with DataTrackr.

Telekom:
• Telekom
• Congstar
• other carriers, which can fetch the used datavolume on pass.telekom.de.

Vodafone:
• Vodafone, if you can see your used datavolumen on www.datatrackr.de/vodafone or with the official My Vodafone app
• Vodafone CallYa, if the official Vodafone CallYa app works for you
• 1&1, if you can see your used datavolumen on www.datatrackr.de/1und1
• mobilcom-debitel, if you can see your used datavolumen on www.datatrackr.de/mobilcomdebitel

DataTrackr is an app that monitors information about your cellular data usage. It queries the data from the provider and presents them in the app and in a minimalistic widget. You can also schedule push notifications which are triggered if you used a specific amount of data.