This widget shows the current amount of money on your Airvoice Wireless account. The widget can show your amount in three different options as a dollar amount, talk time minutes, or MB of web data. The only information this app needs is your Airvoice wireless phone number. The widget is updated every 30 minutes, but If you do tap on the widget it will refresh.
This information is pulled from this URL https://www.airvoicewireless.com/PINRefill.aspx/. The app is most useful for Pay as You Go plans, because for unlimited plans it only show the expiration date.
This app is not associated to Airvoice Wireless in any way.
This widget is also I great example of how to create an android widget. To see the source goto https://github.com/lancewf/AirvoiceWidget