This app is a fully working emulator of citizen calculator model CT-555N/ CT-555W. The check and correct feature is useful for verifying long calculations without reentering the values and is ideal for general and business purposes.

Citizen Calculator Features:-
* Basic math operations (addition subtraction multiplication division)
* Check and correct
* Auto replay
* Percent calculation
* Tax calculation
* Memory calculation
* Price mark-up & mark-down calculation
* Constants calculation
* Number formatting (Decimal and digit-grouping) as per device locale

You can use this calculator to work with very large numbers. Numbers having more than 12 digits are shown in scientific notation.

Leave a review if you like this simple and easy to use calculator app.