Citizen Calculator App vs Modulo Calculator, iCalcModulo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Citizen Calculator App
This app offers a comprehensive calculator with standard arithmetic functions, business-specific calculations like GST, and advanced features. Enjoy a realistic calculator experience with tactile feedback and a clean interface.
- GST Calculator
- Basic math operations
- Business and financial functions (M+, M-, MU, GT)
- Realistic calculator feel with sound and vibration
- Clear and backspace buttons
- Display operator symbols
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Citizen Calculator app With Beautiful Design Citizen calculator - Calculator plus has all simple calculator features like (+) addition, (-) subtraction, (*) multiplication, (/) divide and (%) percentage. You can use Citizen Calculator as a Business and financial calculator and also includes citizen features like M+, M-, MR, MU, GT, SQRT etc to perform day to day business calculations easily. Citizen Calculator is given a touch of real calculator that includes vibrate on touch and citizen calculator like numeric Digits and digital fonts. Calculator Features: - GST Calculator - Basic math operations (addition, subtraction, multiplication, division) - Easy to use with large buttons - Clear button to clear the display area - Backspace button to delete last digit to correct a mistake - Display operators symbol during calculation - Beautiful Sound and Vibration Terms of Use : https://chief-cheque-627.notion.site/Terms-of-Use-2cc6adfdb37480108a48dbd7a09ba295 Privacy Policy : https://chief-cheque-627.notion.site/Privacy-Policy-2cc6adfdb3748165bbe8d7157b25aaa0
Modulo Calculator, iCalcModulo
This utility app functions as a standard calculator with a unique remainder calculation feature for division. It offers a familiar interface, calculation history, and clipboard support. Ideal for tasks requiring division with remainders and general arithmetic.
- Division with remainder calculation
- Familiar calculator operation system
- Calculation history display
- Calculation formula display
- Clipboard copy and paste
- Percent calculations
- Independent memory
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iCalcModulo is a simple and easy-to-use calculator with a familiar operation system, plus a remainder calculation function (division with a "remainder"). It can be calculated by the same operation as real calculators. (Compliant with calculator of company C) It also has functions unique to the calculator app, such as displaying calculation history and calculation formulas. There is ⓘ button to display the information page that describes instructions. Thank you for using iCalc. (Instructions) The operation for Arithmetic Calculations, Root Calculations, Constant Calculation and Independent Memory Calculation are the same as real general calculators. (Compliant with calculator of company C) The original operations and functions are as follows. - When performing division by pressing [MOD] instead of [÷] to calculate, the quotient and remainder will be displayed. The remainder is calculated so that it is greater than or equal to 0. - For example, when calculating the quotient and remainder of 30 ÷ 7, if you operate [3] [0] [MOD] [7] [=], the calculation result '4-2', which means the quotient is 4 and the remainder is 2, is displayed on the result display. - For example in a dispensing work, a calculation when counting 3 tablets a day and 90 days with 14 tablets per sheet is [3] [×] [9] [0] [MOD] [1] [4] [=], the result '19-4', which means 19 sheets and 4 tablets, is displayed. - If the result of calculation with the [MOD] key is used for the next calculation, the value of the quotient will be used. - After calculation with the [=] key, the result is displayed on the main display and a white frame is added. - If you tap an operator key instead of [=] key to calculate, the operator turns white, indicating that you are preparing for the next calculation. - The calculation formula is displayed below the main display. - Flipping the main display while inputting, the minimum digit of the displayed input value will be erased one by one. - Flipping the MR display for independent memory to erase the value in independent memory. - Call the calculation history with [< Prev] key. Repeat tapping to call older history. If you called a calculation history that was too old, you can use [Next >] key to return to newer history. - Tapping [C] key to erase the entered value. And [C] key changes to [AC] key. - Tapping [MR] key to enter the value of the independent memory. And [MR] key changes to [MC] key. - [Copy] and [Paste] keys for clipboard. - Percent Calculations What is 25% of 100? [1] [00] [×] [2] [5] [%] → 50 25% of what number is 100? [1] [00] [÷] [2] [5] [%] → 400 What is 100 increased by 25%? [1] [00] [+] [2] [5] [%] → 125 What is 100 decreased by 25%? [1] [00] [−] [2] [5] [%] → 75 (Others) - The calculation range is −999,999,999,999 ~ 999,999,999,999. - The maximum number of digits is 12. - The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this app.
Screenshots
Verdict
The clearest difference is in-app purchases: Modulo Calculator, iCalcModulo at none against Citizen Calculator App's 4. Modulo Calculator, iCalcModulo also leads on rating (5.0 vs 4.7). Citizen Calculator App's advantage is ads (none vs shown) and ratings volume (355 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Citizen Calculator App sells 4 in-app purchases, starting at $0.99 per 7 days. Modulo Calculator, iCalcModulo asks for nothing beyond the download.
Modulo Calculator, iCalcModulo holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Citizen Calculator App has 355 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 72% of Citizen Calculator App's written reviews are positive against 50% of Modulo Calculator, iCalcModulo's, so the app with the better star average is not the one people write more warmly about.
Citizen Calculator App ships an update monthly, Modulo Calculator, iCalcModulo every 2 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.
| Parameter | Citizen Calculator App | Modulo Calculator, iCalcModulo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (355 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 71.9% of reviews — better | 50.0% of reviews |
| Number of ratings | 355 — better | 1 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 26 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Devkrushna Infotech Private Limited | Takao Ichimura |
Customer experience
Citizen Calculator App
Modulo Calculator, iCalcModulo
In-app purchases
Citizen Calculator App
- Citizen Pro Weekly$0.997 Days
- Monthly Premium$0.991 Month
- Citizen Pro Yearly3 Days trial$2.991 Year
- Remove Ads forever$4.99
Modulo Calculator, iCalcModulo
No in-app purchases
Questions
Is Citizen Calculator App free?
Is Modulo Calculator, iCalcModulo free?
Which has better reviews, Citizen Calculator App or Modulo Calculator, iCalcModulo?
Do Citizen Calculator App or Modulo Calculator, iCalcModulo have ads?
Which is updated more often, Citizen Calculator App or Modulo Calculator, iCalcModulo?
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