Comparison

Modulo Calculator, iCalcModulo vs Evac Navi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Division with remainder calculation
  • Familiar calculator operation system
  • Calculation history display
  • Calculation formula display
  • Clipboard copy and paste
  • Percent calculations
  • Independent memory
Features
Read full description

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.

About

Evac Navi

Features
Read full description

災害などの緊急時に児童避難・引き渡しをスムーズに行うためのシステム

Screenshots

Modulo Calculator, iCalcModulo1 screens
Evac Navi4 screens

Verdict

The call

The clearest difference is ads: Evac Navi at none against Modulo Calculator, iCalcModulo's shown. Evac Navi also leads on update cadence (every 3 days vs every 2 months). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Modulo Calculator, iCalcModulo ships an update every 2 months, Evac Navi every 3 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Modulo Calculator, iCalcModulo versus Evac Navi: the parameters behind the verdict, then further details
ParameterModulo Calculator, iCalcModuloEvac Navi
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size9 MB107 MB
Age rating4+4+
DeveloperTakao IchimuraBusiness Center Okayama Corporation

In-app purchases

None

Modulo Calculator, iCalcModulo

No in-app purchases

None

Evac Navi

No in-app purchases

Questions

Is Modulo Calculator, iCalcModulo free?
Modulo Calculator, iCalcModulo is free to download, with no in-app purchases.
Is Evac Navi free?
Evac Navi is free to download, with no in-app purchases.
Do Modulo Calculator, iCalcModulo or Evac Navi have ads?
Modulo Calculator, iCalcModulo shows ads; Evac Navi does not.
Which is updated more often, Modulo Calculator, iCalcModulo or Evac Navi?
Modulo Calculator, iCalcModulo ships an update every 2 months, and Evac Navi every 3 days. Most recently, Modulo Calculator, iCalcModulo was updated on November 3, 2026 and Evac Navi on October 30, 2026.

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