This is a Business calculator with check and correct functionalities. Sometimes this is referred as "Check and Correct calculator".
This calculator has Indian number system comma placements to show place values. It has retro citizen calculator looks.
The features include
* Swipe to view calculation list or options
* Save and load
* Share calculation
* GST calculator
* Option to remove GST calculator
* All existing themes have GST tax calculator

The newly added auto replay function will redefine the way check and correct Citizen calculator used to work. The Citizen calculator will now come with material design themes for people who want a more modern look. The old retro look of the Citizen Calculator is preserved with a modern touch.