Pascal vs Calculator X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pascal
This app offers a powerful 3-in-1 calculator experience, combining scientific, graphing, and programmer functionalities. The scientific calculator is free, while graphing and programmer modes require an in-app purchase, with trials available for testing.
- Scientific calculator (degree, radian, gradian modes)
- RPN mode
- Graphing calculator with smart tape and adaptive sampling
- Programmer calculator (8, 16, 32, 64-bit bitwise)
- Multiple numeral systems (binary, octal, decimal, hex)
- Unicode and ASCII character encoding
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Pascal (formerly Calculator³) is a professional-grade 3-in-1 scientific, graphing and programmer calculator. Scientific Calculator¹ - Supports degree, radian and gradian modes - Decimal factorials - Modulo operator - Permutations (nPr) and combinations (nCr) - Standard memory functions - RPN mode Graphing Calculator² - Includes all functions the scientific calculator offers - TI-like design - Perform calculations on a smart tape (i.e. no need to close parenthesis, multiply out brackets, real-time syntax highlighting) - Plot graphs using adaptive sampling algorithm to generate precise results - Show or hide roots/intersections and trace values Programmer Calculator³ - Supports 8, 16, 32, and 64-bit bitwise calculations - Binary (base-2), octal (base-8), decimal (base-10), and hexadecimal (base-16) numeral systems too - Unicode (UTF-16) and ASCII character encoding - A binary table that shows you in real time the binary representation of the current operand - RPN mode
Calculator X
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Calculator X is a powerful calculator built for developers, students, and anyone who works with numbers beyond the basics. PROGRAMMER'S CALCULATOR Work seamlessly across decimal, binary, hexadecimal, and octal. Toggle individual bits directly on a 64-bit grid, perform bitwise operations (AND, OR, XOR, NOT), and watch all four bases update in real time as you type. 2D FUNCTION GRAPHING Plot any mathematical function of x instantly. Pan and pinch-to-zoom to explore the curve at any scale. Perfect for visualizing equations, finding intersections, and understanding function behavior. 3D SURFACE PLOTTING Enter any function of x and y and see it rendered as a live 3D surface. Rotate with one finger, zoom with a pinch, and pan with two fingers. Gradient coloring makes it easy to read the shape of any surface. MATRIX CALCULATOR Work with matrices up to 8×8. Perform addition, subtraction, multiplication, transpose, determinant, and inverse — all in one place. Results scroll so nothing gets cut off no matter how large your matrix is. ALL FEATURES FREE Every tool is available to every user, no subscription required.
Screenshots
Verdict
The clearest difference is price: Calculator X at Free against Pascal's $2.99. Calculator X also leads on in-app purchases (none vs 3) and iOS requirement (15.6 vs 17.6). Pascal's advantage is update cadence (every 2 weeks vs every 4 weeks) and device support.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Calculator X is free to download; Pascal costs $2.99 up front. Pascal sells 3 one-off in-app purchases. Calculator X asks for nothing beyond the download.
Pascal ships an update every 2 weeks, Calculator X every 4 weeks. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.
| Parameter | Pascal | Calculator X |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.0 (23 ratings) — better | — |
| Positive reviews | 68.3% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 2 weeks — better | Every 4 weeks |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | — |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Wei | Ahed Qaraqra |
Bugs and requests
Pascal
Reported bugs
12 issues- Crashes after updates
- Premium features reverted to basic
- Cannot enter numbers with iPad Magic Keyboard
- RPN logic not selectable
- Key response slow or nonexistent on watch
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- Lost programming calculator after update
- App crashes when typing '='
- App crashes immediately upon opening
- Fonts are blurry on iPhone 6
- Bug with exponentiation (adds random digit 2)
- Cannot swipe to change calculator modes
- Making a number negative results in incorrect value
Requested features
12 requests- Add RPN to Apple Watch app
- Improve iPad Magic Keyboard support
- Make themes free for all users
- Add a backspace button to Apple Watch app
- Add Arabic language support
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- Change app icon for better recognition
- Option to disable or change click sounds
- Improve navigation for editing equations
- Make graph view full screen
- Add polar graph instructions or functionality
- Add a tape for DEG mode
- Add a widget for iOS 8
Calculator X
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Pascal
- Theme Pack$0.99
- Graphing Calculator$1.99
- Programmer Calculator$1.99
Calculator X
No in-app purchases
Questions
Is Pascal free?
Is Calculator X free?
Which is updated more often, Pascal or Calculator X?
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