Comparison

Calculator for iPad₊ vs Calculator ⁺⁻

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

Head to head
About

Calculator for iPad₊

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Highlights
  • Basic & Scientific Calculator
  • Advanced Scientific Functions
  • Live Currency Converter
  • Calculation History
  • Copy and Share Calculations
  • Equation Editing
  • Memory Banks
Features
Read full description

Solves complex math equations easily with the help of advanced scientific functions, or quickly calculates simple basic calculations. It is fast, handy, and has big buttons! Explicitly designed for iPad, and now also available on iPhone! Save time and share your calculation with your colleague, friend, or anyone, whenever you are! Master your work and calculate percentages to check your business expenses, taxes, financial reports, and whether your budget is correct! #homework #school #hybrid #home CALCULATOR - EXCLUSIVELY MADE FOR YOU - Basic & Scientific Calculator in One View - Advanced Scientific Functions - Live Currency Converter; get exchange rate prices - History; Track and save all calculations, taxes, and expenses - Copy Result, Complete Equation & Share Calculations - Equation edit function - Memory Banks - Calculate with Degrees or Radians - Available on iPad & iPhone - Rotation - Multitasking Support AD-FREE CALCULATOR Upgrade to a Premium Membership and Receive the Following Ongoing Value: • Ad-Free • Premium Customer Support Subscriptions automatically renew each month 24-hours before the end of the current period and your iTunes account will be charged unless auto-renew is turned off at least 24-hours before the end of the current period. You can turn off auto-renew any time from within the app. Any unused portion of a free trial will be forfeited if you purchase a subscription. Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy 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 LOVING CALCULATOR? Please show your support by rating us! Thank you. 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 Calculator for iPad (C) 2011 Impala Studios

About

Calculator ⁺⁻

This app offers both basic and scientific calculation functions for iPhone and iPad. Users can customize its appearance, view calculation history, and perform complex equations with high accuracy. It also provides real-time calculation display and adjustable touch feedback.

Highlights
  • Basic and scientific calculator modes
  • Over 30 scientific operations
  • Calculation history view
  • Real-time calculation display
  • Customizable color themes
  • Adjustable button touch sound/vibration
  • High accuracy calculations (75+ significant digits)
Features
Read full description

Calculator for iPad and iPhone is an easy to use that includes both a standard and scientific calculator. Calculator app allows you to: • Customize the look of the application by changing the color • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • View history of your calculations on the History Tab • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations • Change button touch sound with vibration • Displays real time calculation

Screenshots

Calculator for iPad₊4 screens
Calculator ⁺⁻4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator ⁺⁻ at none against Calculator for iPad₊'s 7. Calculator ⁺⁻ also leads on review sentiment (50% vs 40%). Calculator for iPad₊'s advantage is update cadence (monthly vs every 15 months) and ratings volume (126K vs 42). On price, rating, ads 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. Calculator for iPad₊ sells 7 in-app purchases, starting at $0.99 per month. Calculator ⁺⁻ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Calculator for iPad₊ against 4.7 for Calculator ⁺⁻. That said, the two scores are not equally well evidenced: Calculator for iPad₊ has 126K ratings behind it against 42, so its average is the more settled of the two. Written reviews are what separate them: 40% of Calculator for iPad₊'s written reviews are positive against 50% of Calculator ⁺⁻'s.

UpkeepUpdate frequency

Calculator for iPad₊ ships an update monthly, Calculator ⁺⁻ every 15 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

Scorecard5 real differences · 5 level
Calculator for iPad₊ versus Calculator ⁺⁻: the parameters behind the verdict, then further details
ParameterCalculator for iPad₊Calculator ⁺⁻
PriceFreeFree
Rating4.5 (126K ratings)4.7 (42 ratings) — better
Positive reviews40.0% of reviews50.0% of reviews — better
Number of ratings126K — better42
Update frequencyMonthly — betterEvery 15 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size145 MB4 MB
Age rating4+4+
DeveloperImpala Studios B.V.Matrix Software Co.

Customer experience

Calculator for iPad₊

All ratings126,010 ratings
Positive88.0%
Neutral4.0%
Negative8.0%
Written reviews130 reviews
Positive40.0%
Neutral13.1%
Negative46.9%

Calculator ⁺⁻

All ratings42 ratings
Positive90.5%
Neutral7.1%
Negative2.4%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Bugs and requests

Calculator for iPad₊

Reported bugs

2 issues
  • Calculation errors
  • Ads obstructing functionality

Requested features

4 requests
  • Add fraction support
  • Include an eraser function
  • Improve accuracy of calculations
  • Reduce intrusiveness of ads

Calculator ⁺⁻

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Calculator for iPad₊

Subscriptions7
  • The Full Experience - 1 Month$0.991 Month
  • Weekly Premium Access3 Days trial$0.997 Days
  • The Full Experience - 6 Months$3.996 Months
Show 4 more
  • The Full Calculator Experience$3.991 Year
  • Limited Time Offer$4.991 Year
  • Premium Subscription Yearly3 Days trial$5.191 Year
  • Annual Premium Access$9.991 Year
None

Calculator ⁺⁻

No in-app purchases

Questions

Is Calculator for iPad₊ free?
Calculator for iPad₊ is free to download, with in-app purchases available.
Is Calculator ⁺⁻ free?
Calculator ⁺⁻ is free to download, with no in-app purchases.
Which has better reviews, Calculator for iPad₊ or Calculator ⁺⁻?
Calculator ⁺⁻ is rated higher. Calculator for iPad₊ averages 4.5 out of 5 from 126K ratings, while Calculator ⁺⁻ averages 4.7 from 42 ratings.
Do Calculator for iPad₊ or Calculator ⁺⁻ have ads?
Both Calculator for iPad₊ and Calculator ⁺⁻ show ads.
Which is updated more often, Calculator for iPad₊ or Calculator ⁺⁻?
Calculator for iPad₊ ships an update monthly, and Calculator ⁺⁻ every 15 months. Most recently, Calculator for iPad₊ was updated on November 10, 2026 and Calculator ⁺⁻ on November 7, 2026.

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