cluBalance

Application to automatically check the balance on your mobile phone via SMS messages, many operators offer this service for free.
Features:
nows how to seek balance automatically, at regular intervals, after the conversation, after disconnecting from GPRS/3G etc.
Displays separately how much money spent in the last conversation of the day, for the current month, etc.
Can be switched off automatically when roaming.
Information on the balance sheet can be displayed using widgets placed on the desktop. In this case the choice of widgets available in different sizes: 1×1, 1×2, 1×4. For every taste and color.
Many operators is automatically configured when you first start.
Able to store individual settings for different SIM cards.
Conducted a detailed log of expenditure.
You can view charts that let you visually compare the costs of different days / months.
The principle is simple:
1. Sent an SMS message with the specified text to a specified number of the operator.
2. It is expected an SMS message from a given number.
3. Message is parsed for the balance in it.