Python script that checks your mobile data allowance in 3 Mobile
Why you might need this:
You will need:
sudo pip install selenium
(Ensure you have correct version for your OS)
How to monitor
Execute the script via Crond and publish the output to a file on a web server somewhere.
Then, install the following Android app:
This app lets you monitor the content of a URL. If will alert when the content changes.
There are probably similar apps for iPhone.