CITIZEN Calculator

60.7K reviews
Content rating
PEGI 3
10M+
Downloads
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About this app

This app is modelled on the classic CITIZEN calculator CT-555N.

Calculator features:
• Basic math operations (addition, subtraction, multiplication, division)
• Memory Calculation
• Constant Calculation
• Check & Correct / Replay function
• Price Mark-Up & Down Calculation
• Tax Calculation

Please leave a review if you like this calculator app.
Simple and easy to use calculator with 'check and correct' function.
Updated on
17 Aug 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

59K reviews
Tori Mi
7 March 2022
I really like how I can choose to control ads. Some of the calculating functions are not smoothly completed is why I held back on providing a 5. I like the look and menu options like sound, appearance, and history.
1,546 people found this review helpful
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Muhammad Afzal
12 March 2026
This caculator is very useful. There are buttons of correction, recherche & serial no's in this calculator. Its touch system is most easily. Its shape is very attractive & beautiful. On the whole, it is very good calculator uses on counting.
43 people found this review helpful
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David Hope
9 October 2022
Just works simply & beautifully. Buttons are a good size to avoid mistyped entries & any errors can be erased one digit at a time. A running calculation & total tips off a great calculator.
235 people found this review helpful
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