Very poor help
This is not a particularly easy app to figure out and in order to work, it must be correctly configured. Unfortunately, the help file is poor. For example, under Getting Started, it says, "In order to get started, you will need to tap settings tab and enter billing and quota information" Thats it! There are about 15 options in Settings and thats all it says! No thanks for the unhelpful help.
Cybernettr about
Data Usage Pro