Comparison

Calculator M+ 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 M+

Perform a wide range of calculations, from basic arithmetic to complex scientific functions. This app offers memory storage, calculation history, and cross-platform support. It includes features like dark mode and Apple Pencil integration for enhanced usability.

Highlights
  • Scientific calculations
  • Memory storage
  • Calculation history
  • Cross-platform support
  • Dark mode
  • Apple Pencil support
Features
Read full description

Introducing Calculator M+, the most powerful and versatile calculator app on the App Store. With a sleek and intuitive interface, Calculator M+ makes it easy to perform complex calculations with ease. But that's not all - Calculator M+ also includes powerful memory and history features to help you keep track of your calculations. Use the memory function to store and recall values, and the history function to review your calculation history. Whether you're a student, professional, or just someone who needs a powerful calculator, Calculator M+ has you covered. Download Calculator M+ now and experience the power of the best calculator app on the App Store. FEATURES - Cross-Platform support! It works on Mac, iPad, and iPhone devices supporting all available sizes - Multi-tasking and landscape support for iPad - Dark-mode support - Simple math calculations - Scientific calculations; sin, cos, tan, tan-1, log2, log10, ln, e, rand, deg, π, ײ, √×, ׳, ³√×, x!, 1/×, |×|, %, 2^× - Memory: It stores your calculation results so that you can use them in another calculation. - Simple to use main features with scrolling keyboard - Calculates in realtime as you type - Displays concurrently, both the result and calculation process - Sounds and haptic feedback PRO-FEATURES - History functionality; it keeps your calculation history, which you can review later, or re-use previous results in your new calculations - Always dark-mode option - Apple Pencil support! Just write it to calculate - Monospace font option - Light app icon option Pro features are available for all of your devices with an annual subscription. Your feedback and suggestions would be greatly appreciated. Please reach us at support@innovationbox.com Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://innovationbox.com/calculator/privacy-policy.html

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 M+4 screens
Calculator ⁺⁻4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator ⁺⁻ at none against Calculator M+'s 1. Calculator M+'s advantage is ads (none vs shown) and update cadence (fortnightly vs every 15 months). On price, rating, ratings volume 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 M+ sells 1 in-app purchase, starting at $6.99 per year. 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 M+ against 4.7 for Calculator ⁺⁻. Both are backed by a comparable volume of ratings — 111 and 42 respectively. Written reviews are what separate them: 64% of Calculator M+'s written reviews are positive against 50% of Calculator ⁺⁻'s.

UpkeepUpdate frequency

Calculator M+ ships an update fortnightly, Calculator ⁺⁻ every 15 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator M+ versus Calculator ⁺⁻: the parameters behind the verdict, then further details
ParameterCalculator M+Calculator ⁺⁻
PriceFreeFree
Rating4.5 (111 ratings)4.7 (42 ratings) — better
Positive reviews63.6% of reviews — better50.0% of reviews
Number of ratings111 — better42
Update frequencyFortnightly — betterEvery 15 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size8 MB4 MB
Age rating4+4+
DeveloperInnovationBoxMatrix Software Co.

Customer experience

Calculator M+

All ratings110 ratings
Positive85.5%
Neutral6.4%
Negative8.2%
Written reviews11 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

Calculator ⁺⁻

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

In-app purchases

1 purchases

Calculator M+

Subscriptions1
  • Calculator M+ Pro Annual$6.991 Year
None

Calculator ⁺⁻

No in-app purchases

Questions

Is Calculator M+ free?
Calculator M+ 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 M+ or Calculator ⁺⁻?
Calculator ⁺⁻ is rated higher. Calculator M+ averages 4.5 out of 5 from 111 ratings, while Calculator ⁺⁻ averages 4.7 from 42 ratings.
Do Calculator M+ or Calculator ⁺⁻ have ads?
Calculator ⁺⁻ shows ads; Calculator M+ does not.
Which is updated more often, Calculator M+ or Calculator ⁺⁻?
Calculator M+ ships an update fortnightly, and Calculator ⁺⁻ every 15 months. Most recently, Calculator M+ was updated on October 22, 2026 and Calculator ⁺⁻ on October 24, 2026.

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