Comparison

Calculator⁼ vs Calculator Pro+ for iPad

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 a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Highlights
  • Basic & Scientific Calculator
  • Live Currency Converter
  • History Tape
  • Equation Edit Function
  • Degrees or Radians Calculation
  • Memory Banks
Features
Read full description

Calculator is a clean, easy-to-use calculator app for everyday math and more. It handles basic calculations and scientific functions when you need them and keeps a history of your past results so you can quickly go back and check or reuse them. With its classic design, it feels familiar and straightforward—perfect for quick sums at work, school, or home. AVAILABLE FOR FREE • Basic & Scientific Calculator • Great Visibility; Big buttons for easy calculations • Live Currency Converter; get exchange rate prices • History Tape; Track all calculations, taxes, and expenses • Equation edit function • Calculate with Degrees or Radians • Memory Banks • Choose your Decimal Notation • Set the Number of Decimals • Available in 12 languages • Made for iPad & iPhone • Support Split View & Dark Mode BASIC AND SCIENTIFIC Rotate your device to access all scientific buttons. Or if you prefer calculating in portrait mode, simply swipe left. YOUR EXPERIENCE IS IMPORTANT TO US! As your experience is important to us, we’re happy with your feedback, questions, and suggestions. Please share any support as our team is always ready to help via support@impalastudios.com Mathematical Operations Addition, Subtraction, Division, Multiplication, Percentages, Square, Cubic Exponent, Nth Exponent, Square Root, Cubic Root, Nth Root, Engineering Exponent, Factorial, Power of Two, Power of Ten, Power of E, Natural Logarithm, Common Logarithm, Binary Logarithm, Sine, Cosine, Tangent, Arc Sine, Arc Cosine, Arc Tangent, Hyperbolic Sine, Hyperbolic Cosine, Hyperbolic Tangent, Hyperbolic ArcSine, Hyperbolic Arc Cosine, Hyperbolic ArcTangent, Multiplicative Inverse, Random Number Input LOVING CALCULATOR? Please show your support by rating us! Thank you. Calculator (C) 2011 Impala Studios Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy

About

Calculator Pro+ for iPad

This app offers both basic and scientific calculation modes, alongside a comprehensive unit and currency converter. It supports multitasking, allowing simultaneous use with other applications, and features a history bar for tracking calculations.

Highlights
  • Basic and scientific calculator modes
  • Universal unit and currency converter
  • Multitasking mode
  • Calculation history bar
  • Customizable skins
  • VoiceOver accessibility
Read full description

A simple calculator for your iPad with unit & currency converter and multitasking mode. Get it now for free! Calculator Pro main features: - Basic calculator in Portrait Mode - Scientific calculator in Landscape Mode - Universal converter for Currency, Length, Time, Weight, Pressure, Temperature, Fuel Consumption, Speed and many more categories - Multitasking mode: use Calculator Pro and any other app simultaneously Calculator Pro+ for iPad is designed for everyone looking for simplicity and functionality. Enjoy basic calculations in Portrait Mode with big handy buttons, or make complex calculations in scientific calculator, available in Landscape Mode. Calculator Pro is the only one calculator needed for math classes from primary school through college. The app is great in basic everyday calculations and solving complex problems in physics, astronomy or chemistry as well. Need to convert one unit to another? With the intuitive and beautifully designed converter, you can easily switch between currencies, temperatures, length, speed and other numerous units, and continue calculation without interruptions. Features: • Two modes are available: do basic calculations in Portrait Mode or go advanced in Landscape Mode • Degrees and Radians calculations • History Bar: see your full calculation history directly on the screen • Track Calculations History: view, save, delete selected equation or clear all • Universal converter with 19 categories, including Currency, Length, Time, Weight, Pressure, Temperature, Area, Data Size, Energy, Force, Frequency, Power, Acceleration, Density, Angle, Typography, Volume, Fuel Consumption and Speed • Handy text search to find categories and units instantly • Multitasking mode: bring in Calculator Pro while viewing web pages, photos, taking notes and more to get results instantly! • Calculator Pro is now accessible via VoiceOver as well • Smart Keyboard support: take full advantage of seamless and intuitive calculations on your iPad Pro • Pick the look from a bunch of skins to suit your own preference (Modern, Rose, Wood, Old, Doodle, Minimalistic, Zombie, Yellow, New Year) • Memory buttons to help you out with complex calculations • Accidentally input the wrong number? Just swipe with your finger to edit it! • Copy and paste results and expressions directly into the current calculation • Comment on the equation and send the calculation results with comments via email Now you can do calculations on the go seamlessly! For complete access to all Calculator Pro+ for iPad features, you will need to allow access to the following: *Location data - this will enable automatic currency selection in the Converter. Privacy Policy: http://apalon.com/privacy_policy.html EULA: http://www.apalon.com/terms_of_use.html California Privacy Notice: https://apalon.com/privacy_policy.html#h AdChoices: https://apalon.com/privacy_policy.html#i

Screenshots

Calculator⁼4 screens

Verdict

The call

The clearest difference is rating: Calculator⁼ at 4.6 against Calculator Pro+ for iPad's 4.4. Calculator⁼ also leads on review sentiment (36% vs 26%) and ratings volume (359K vs 62K). Calculator Pro+ for iPad's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases 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. Calculator⁼ sells 8 in-app purchases, starting at $0.49 per 7 days and Calculator Pro+ for iPad sells 5 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calculator⁼ holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator⁼ has 359K ratings behind it against 62K, so its average is the more settled of the two. Written reviews point the same way: 36% of Calculator⁼'s written reviews are positive against 26% of Calculator Pro+ for iPad's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. Both last shipped on November 6, 2026.

Scorecard5 real differences · 5 level
Calculator⁼ versus Calculator Pro+ for iPad: the parameters behind the verdict, then further details
ParameterCalculator⁼Calculator Pro+ for iPad
PriceFreeFree
Rating4.6 (359K ratings) — better4.4 (62K ratings)
Positive reviews35.6% of reviews — better26.0% of reviews
Number of ratings359K — better62K
Update frequencyMonthlyMonthly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.013.0 — better
Further details — not scored
Size159 MB183 MB
Age rating4+17+
DeveloperImpala StudiosMosaic S.r.l.

Customer experience

Calculator⁼

All ratings358,262 ratings
Positive91.4%
Neutral3.7%
Negative4.9%
Written reviews808 reviews
Positive35.6%
Neutral6.8%
Negative57.5%

Calculator Pro+ for iPad

All ratings61,593 ratings
Positive85.7%
Neutral5.0%
Negative9.4%
Written reviews423 reviews
Positive26.0%
Neutral5.9%
Negative68.1%

User reviews

Calculator⁼

From 359K App Store ratings

What we love

  • 👍 Easy to use
  • 📊 Helpful history feature
  • 💻 Versatile (basic and scientific)
  • 🔍 Clear display and large buttons

Room to improve

  • 🤖 Intrusive and excessive ads
  • 💰 Subscription model for ad-free version
  • 🔄 Ads interrupting calculations
  • 🕰️ Slow performance due to ads

Calculator Pro+ for iPad

From 62K App Store ratings

What we love

  • 🚀 Easily the best calculator app on iPad
  • 👍 Great app and very useful
  • 👍 Simple and straightforward features and functions
  • 👍 Allows customization & personalization

Room to improve

  • 🚨 Lousy and annoying pop-up screen asking to subscribe
  • 🚨 Too many ads that make the app unusable
  • 🚨 Ads interrupt calculations and disrupt workflow
  • 🚨 Ads are very intrusive and full-screen
  • 🚨 Ads make the app virtually unusable without paying

Bugs and requests

Calculator⁼

Reported bugs

3 issues
  • History not always showing all entries
  • Ads covering up parts of the screen
  • Inability to close full-screen ads

Requested features

4 requests
  • Add fraction button
  • Option to clear calculation history
  • Ability to copy/paste results
  • Customizable layout and themes

Calculator Pro+ for iPad

Reported bugs

2 issues
  • Calculations not working correctly
  • Unable to restore past purchases

Requested features

3 requests
  • More calculator themes and functionality
  • Memory function
  • Compatibility with iPhone

In-app purchases

8 purchases

Calculator⁼

Subscriptions6
  • Weekly Premium Access3 Days trial$0.497 Days
  • Monthly full access3 Days trial$1.991 Month
  • Weekly Premium Access3 Days trial$1.997 Days
Show 3 more
  • Limited Time Offer$4.991 Year
  • Premium Yearly3 Days trial$5.991 Year
  • Annual Premium Access$9.991 Year
One-time2
  • Retro Theme Calculator'$0.99
  • Lifetime Full Access$14.99
5 purchases

Calculator Pro+ for iPad

Subscriptions4
  • Premium Weekly with free trial7 Days trial$0.997 Days
  • Premium Weekly$0.997 Days
  • Premium Yearly with Free Trial7 Days trial$19.991 Year
Show 1 more
  • Premium Yearly$19.991 Year
One-time1
  • Calculator Pro for iPad Full$0.99

Questions

Is Calculator⁼ free?
Calculator⁼ is free to download, with in-app purchases available.
Is Calculator Pro+ for iPad free?
Calculator Pro+ for iPad is free to download, with in-app purchases available.
Which has better reviews, Calculator⁼ or Calculator Pro+ for iPad?
Calculator⁼ is rated higher. Calculator⁼ averages 4.6 out of 5 from 359K ratings, while Calculator Pro+ for iPad averages 4.4 from 62K ratings.
Do Calculator⁼ or Calculator Pro+ for iPad have ads?
Both Calculator⁼ and Calculator Pro+ for iPad show ads.
Which is updated more often, Calculator⁼ or Calculator Pro+ for iPad?
Calculator⁼ ships an update monthly, and Calculator Pro+ for iPad monthly. Most recently, Calculator⁼ was updated on November 6, 2026 and Calculator Pro+ for iPad on November 6, 2026.

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