Comparison

Calculator vs Simple Calculator.

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

Head to head
About

Calculator

This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.

Highlights
  • Basic and scientific calculators
  • Type or write math expressions
  • Inline equation solving
  • Variable creation and use
  • Equation graphing
  • Unit and currency conversion
  • Calculation history
Features
Read full description

Calculator Easily type out math with the basic and scientific calculators for quick solutions. With the Math Notes calculator, solving expressions, creating and using variables, and even plotting equations on graphs is as simple as typing or writing them out. Basic & Scientific Calculators Type complete expressions with parentheses, and basic and scientific operations before hitting equal for the final answer. With history, you can keep track of previous calculations, and easily copy or switch back to previous results. Unit Conversion Unit conversions in the basic and scientific calculators help you quickly convert between hundreds of units including length, speed, temperature, weight and more. You can even get up-to-date conversions for currencies from around the world. Math Notes Type math or write it out using Apple Pencil on iPad, and Math Notes will solve your expressions inline as soon as you add an equal sign. Math Notes supports all the same functions as the basic and scientific calculators, unit conversions and even math written vertically. Variables Create variables by typing or writing their name, an equals sign and then their value. Name them with letters or words. Tap on a variable’s value to easily adjust the value up or down. And use your variables in expressions, and even graphed equations across a Math Note. Graphing Type or write an equation, and with a tap you can graph it in Math Notes. Zoom, pan around, or resize your graph to get it just right. You can even add multiple equations on the same graph to see how they’re related.

About

Simple Calculator.

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

Highlights
  • Real-world logic, no forced order of operations
  • Running total display
  • Cost, sell, margin calculations
  • Add/subtract percentages in one step
  • Clean, intuitive interface with large buttons
  • Minimal, non-intrusive ads
Features
Read full description

This is the calculator that gets it right—built for professionals, retailers, and anyone who needs fast, accurate math without the complexity. • Work smarter with real-world logic No forced order of operations—just like a classic pocket calculator with a running total. • Perfect for business use Easily handle cost, sell, and margin calculations. Add or subtract percentages in one step. • Clean, intuitive interface Large, labeled buttons and a crisp display make every calculation effortless. • Reliable and distraction-free Minimal ads, never intrusive—so you can stay focused, even in front of clients. Inspired by the Casio calculators you know and trust—modernized for your iPhone/ iPad. Download now and make everyday math faster, clearer, and smarter.

Screenshots

Calculator3 screens
Simple Calculator.4 screens

Verdict

The call

The clearest difference is rating: Simple Calculator. at 4.6 against Calculator's 3.0. Simple Calculator. also leads on review sentiment (65% vs 38%). Calculator's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Simple Calculator. holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Calculator has 9.8K ratings behind it against 1.6K, so its average is the more settled of the two. Written reviews point the same way: 38% of Calculator's written reviews are positive against 65% of Simple Calculator.'s.

UpkeepUpdate frequency

Calculator ships an update every 4 months, Simple Calculator. every 3 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator versus Simple Calculator.: the parameters behind the verdict, then further details
ParameterCalculatorSimple Calculator.
PriceFreeFree
Rating3.0 (9.8K ratings)4.6 (1.6K ratings) — better
Positive reviews37.8% of reviews65.1% of reviews — better
Number of ratings9.8K — better1.6K
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS10.0 — better15.6
Further details — not scored
Size17 MB5 MB
Age rating4+4+
DeveloperAppletasser gyati

Customer experience

Calculator

All ratings9,810 ratings
Positive47.8%
Neutral6.8%
Negative45.4%
Written reviews1,253 reviews
Positive37.8%
Neutral10.3%
Negative51.9%

Simple Calculator.

All ratings1,599 ratings
Positive91.2%
Neutral3.3%
Negative5.4%
Written reviews126 reviews
Positive65.1%
Neutral7.9%
Negative27.0%

User reviews

Calculator

From 9.8K App Store ratings

What we love

  • 👍 Basic calculator functionality
  • 💡 Math notes feature
  • 🚀 Clean, simple design

Room to improve

  • 🐛 Calculation errors
  • 🔍 Lack of history/memory functions
  • 🤔 Inconvenient to access advanced features
  • 🤯 Frustrating to fix mistakes
  • 🙄 Removed useful features in recent updates

Simple Calculator.

From 1.6K App Store ratings

What we love

  • 👍 Simple and easy to use
  • 💡 Supports percentage calculations
  • 🚀 Fast and responsive
  • 🔒 No security issues reported

Room to improve

  • 🐛 Occasional display issues with underline artifacts
  • 📢 Intrusive ads in free version
  • 💰 Paid version not clearly advertised

Bugs and requests

Calculator

Reported bugs

3 issues
  • Calculator disappearing from home screen
  • Incorrect calculation results
  • Inconsistent behavior with parentheses and scientific functions

Requested features

5 requests
  • Restore ability to repeat calculations with '='
  • Add 'clear' button
  • Show full calculation history
  • Improve usability for advanced math
  • Bring calculator to iPad

Simple Calculator.

Reported bugs

2 issues
  • Incorrect calculation results in some cases
  • Ads appearing during critical usage scenarios

Requested features

3 requests
  • Add a dedicated 'C' clear button
  • Provide more customization options for key layout
  • Implement a history/memory function

In-app purchases

None

Calculator

No in-app purchases

None

Simple Calculator.

No in-app purchases

Questions

Is Calculator free?
Calculator is free to download, with no in-app purchases.
Is Simple Calculator. free?
Simple Calculator. is free to download, with no in-app purchases.
Which has better reviews, Calculator or Simple Calculator.?
Simple Calculator. is rated higher. Calculator averages 3.0 out of 5 from 9.8K ratings, while Simple Calculator. averages 4.6 from 1.6K ratings.
Do Calculator or Simple Calculator. have ads?
Simple Calculator. shows ads; Calculator does not.
Which is updated more often, Calculator or Simple Calculator.?
Calculator ships an update every 4 months, and Simple Calculator. every 3 months. Most recently, Calculator was updated on September 24, 2026 and Simple Calculator. on September 23, 2026.

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