Every iOS device has a Calculator module in the Control Center that can be enabled from the Control Center settings. This Calculator module is fairly limited and only allows users to quickly launch the Calculator app no matter if they are inside an app, in lockscreen or home screen. Users can also long press on the Calculator button that reveals a Calculator widget where users can tap on the ‘Copy Last Result’ option in order to copy the result of their last calculation.
A newly released CCCalc tweak makes the Control Center Calculator module much more useful as it turns it from a simple Calculator shortcut into a full-fledged Calculator application that can be used to make all sorts of calculations. The CCCalc widget inside the Control Center offers all kinds of calculator functions including +,-,*, %, / and more.
Users can quickly access the CCCalc module by accessing the Control Center screen and then long pressing on the Calculator button.
In case you don’t have the Calculator button in the Control Center you can enable it by going to Settings -> Control Center -> Customize Controls -> Scroll down and tap on the green ‘+’ button next to Calculator.
You can download the simple but super useful CCCalc tweak on your jailbroken device for free. It is available at developer’s Github repository. To download the tweak simply add ‘https://gilesgc.github.io/repo’ to your Cydia or Sileo sources and install it.