Calculator + vs The Math Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator +
This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.
- Free basic and scientific calculator
- Intuitive interface with equation and result display
- Fraction and percent support
- Advanced editing capabilities
- Polynomial and linear equation solver
- Graphing calculator
- Unit conversion and geometric calculators
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Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
The Math Keyboard
Access hundreds of math and scientific characters directly from your keyboard. Type symbols anywhere in any app with ease. Includes numbers, trigonometric, algebra, and alphabetical symbols.
- Access hundreds of math symbols
- Type symbols in any app
- Includes numbers
- Trigonometric symbols
- Algebra symbols
- Alphabetical symbols
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The Math Keyboard gives you quick access directly in your keyboard to hundreds of useful Math and Scientific characters. Simply open of the Math Keyboard in any App and type math symbols anywhere you like. Done. Easy! Characters include : - Numbers - Trigonometric Symbols - Algebra Symbols - Alphabetical Symbols What our users are saying about The Math Keyboard : "Super awesome keyboard, has a lot of versatility that you will find usage for everything" "Amazing! Pretty simple, makes typing math easy"
Screenshots
Verdict
The clearest difference is price: Calculator + at Free against The Math Keyboard's $0.99. Calculator + also leads on rating (4.6 vs 3.4) and update cadence (every 5 days vs every 2 months). The Math Keyboard's advantage is in-app purchases (none vs 12) and ads (none vs shown). On 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
Calculator + is free to download; The Math Keyboard costs $0.99 up front. Calculator + sells 12 in-app purchases, starting at $4.99 per month. The Math Keyboard asks for nothing beyond the download.
Calculator + holds the better App Store score, 4.6 against 3.4. That said, the two scores are not equally well evidenced: Calculator + has 10K ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 59% of The Math Keyboard's.
Calculator + ships an update every 5 days, The Math Keyboard every 2 months. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.
| Parameter | Calculator + | The Math Keyboard |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.6 (10K ratings) — better | 3.4 (30 ratings) |
| Positive reviews | 84.9% of reviews — better | 58.5% of reviews |
| Number of ratings | 10K — better | 30 |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 8.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | xNeat.com | Daniel Soffer |
Customer experience
Calculator +
The Math Keyboard
Bugs and requests
Calculator +
Reported bugs
5 issues- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes
Requested features
5 requests- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines
The Math Keyboard
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator +
- Scientific Calculator3 Days trial$4.991 Month
- Calculator7 Days trial$39.991 Year
- Linear Calculator$2.99
- Factoring Calculator$2.99
- Handwriting Calculator$2.99
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- Currency Converter$2.99
- Themes Pack$2.99
- Graphing Calculator$3.99
- Fraction Calculator$3.99
- Scientific Calculator$4.99
- Calculator Plus$4.99
- Calculator$16.99
The Math Keyboard
No in-app purchases
Questions
Is Calculator + free?
Is The Math Keyboard free?
Which has better reviews, Calculator + or The Math Keyboard?
Do Calculator + or The Math Keyboard have ads?
Which is updated more often, Calculator + or The Math Keyboard?
Other comparisons
