You can have as many accounts set up as you want, and you can get information about multiple phone numbers on a single Optus account.
As soon as it's open, Phone Usage will start automatically refreshing the accounts it’s set up with, and you can set a favourite account which will open automatically when you start the app.
Click here to see Phone Usage on the App Store.
Quickly view mobile or internet usage on your iPhone with this free, single account version of Phone Usage.
Supports all the service providers Phone Usage does, and gives you the same info. If you’re not sure Phone Usage is for you, Quick Usage is free, so go try it out.
If you’ve only got one account you want to keep an eye on, Quick Usage might even be all you need.
Click here to see Quick Usage on the App Store.
See if your service provider is compatible with these apps on the support page.