Does Fizz have a phone app? (for usage, etc.)

All on line, you can also use your phone to track the usage

If you do not have money in the Fizz's wallet when you use all your data you will not have any extra, your data will stop to work.

Hi
They have an app for the home internet where you can see who has access to your wifi and lots of other but not for the cell plan as far as I know. I created a shortcut on my phone to the website and it’s working quite well.