Comparison

Omega Calculator vs Modulo Calculator, iCalcModulo

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

Head to head
About

Omega Calculator

A beautiful and intuitive calculator app for iPhone and iPad, offering both basic arithmetic and advanced scientific functions. It features a smooth, fluid interface with large, colorful buttons and high-quality mathematical typesetting. Results are saved to a history tape and synced across devices, with customizable themes available.

Highlights
  • Basic and scientific calculation modes
  • Intuitive and fluid interface
  • High-quality mathematical typesetting
  • History tape for saved calculations
  • Customizable themes
  • Advanced functions (Pro version)
Features
Read full description

Welcome to Omega Calculator, a beautiful and intuitive calculator for your iPhone and iPad. It’s both familiar and powerful. A full-blown scientific calculator when you need it, and a simple arithmetic device when you don’t. A myriad of capabilities to suit your needs, from trivial computations to advanced mathematical functions. Perfect for students and professionals alike, or anyone in need of a high-quality, visually-pleasing calculator, capable of performing any mathematical task you throw its way. Simplicity meets elegance in the app’s intuitive design. The interface is smooth, fluid, and fun. Buttons are large and colorful, arranged to maximize efficiency and ease of use. The whole expression appears on one line as you input it, and then together with the result when you press enter. Characters are given high-quality mathematical typesetting. You can type in crazy long expressions and it’s a breeze. Results are saved to a history tape for future use, synced to all your devices. And you have the freedom to customize your calculator with different themes. We’re committed to providing an ad-free experience for everyone. No one wants to be interrupted by irrelevant ads while trying to use their calculator. That’s why Omega has no outside advertisements. We also don’t collect any data from users. Your calculations and any other information are kept on your device only. Unlock even more features with Omega Pro. Available as a single in-app purchase. All 30+ themes, an interactive text pointer for editing the input line, and saving and exporting your past calculations. Variables for storing and recalling values, plugging numbers into expressions, graphing functions, and more advanced operations like summation, derivatives, and integrals. It’s time to get the best calculator experience. Download Omega Calculator today.

About

Modulo Calculator, iCalcModulo

This utility app provides a familiar calculator interface with the unique ability to calculate division remainders. It offers a calculation history, formula display, and clipboard functions for efficient use. Ideal for tasks requiring precise division with remainders.

Highlights
  • Division remainder calculation
  • Calculation history
  • Formula display
  • Clipboard copy/paste
  • Percent calculations
  • Familiar calculator operation
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 [▼older] key. Repeat tapping to call older history. If you called a calculation history that was too old, you can use [▲newer] 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

Omega Calculator4 screens
Modulo Calculator, iCalcModulo1 screens

Verdict

The call

The clearest difference is in-app purchases: Modulo Calculator, iCalcModulo at none against Omega Calculator's 1. Modulo Calculator, iCalcModulo also leads on rating (5.0 vs 4.7) and iOS requirement (12.0 vs 15.0). Omega Calculator's advantage is ads (none vs shown) and review sentiment (83% vs 50%). On price, update cadence and device support 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. Omega Calculator sells 1 one-off in-app purchase. Modulo Calculator, iCalcModulo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Modulo Calculator, iCalcModulo holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Omega Calculator has 42 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 83% of Omega Calculator'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.

UpkeepUpdate frequency

Omega Calculator ships an update every 2 months, Modulo Calculator, iCalcModulo every 6 weeks. The most recent releases landed on July 6, 2026 and September 12, 2026 respectively.

Scorecard7 real differences · 3 level
Omega Calculator versus Modulo Calculator, iCalcModulo: the parameters behind the verdict, then further details
ParameterOmega CalculatorModulo Calculator, iCalcModulo
PriceFreeFree
Rating4.7 (42 ratings)5.0 (1 ratings) — better
Positive reviews83.3% of reviews — better50.0% of reviews
Number of ratings42 — better1
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size9 MB14 MB
Age rating4+4+
DeveloperJoseph RupertusTakao Ichimura

Customer experience

Omega Calculator

All ratings42 ratings
Positive90.5%
Neutral2.4%
Negative7.1%
Written reviews24 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Modulo Calculator, iCalcModulo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

1 purchases

Omega Calculator

One-time1
  • Omega Pro$6.99
None

Modulo Calculator, iCalcModulo

No in-app purchases

Questions

Is Omega Calculator free?
Omega Calculator is free to download, with in-app purchases available.
Is Modulo Calculator, iCalcModulo free?
Modulo Calculator, iCalcModulo is free to download, with no in-app purchases.
Which has better reviews, Omega Calculator or Modulo Calculator, iCalcModulo?
Modulo Calculator, iCalcModulo is rated higher. Omega Calculator averages 4.7 out of 5 from 42 ratings, while Modulo Calculator, iCalcModulo averages 5.0 from 1 ratings.
Do Omega Calculator or Modulo Calculator, iCalcModulo have ads?
Modulo Calculator, iCalcModulo shows ads; Omega Calculator does not.
Which is updated more often, Omega Calculator or Modulo Calculator, iCalcModulo?
Omega Calculator ships an update every 2 months, and Modulo Calculator, iCalcModulo every 6 weeks. Most recently, Omega Calculator was updated on July 6, 2026 and Modulo Calculator, iCalcModulo on September 12, 2026.

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