WP 34s vs Pascal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WP 34s
This app is a powerful RPN scientific calculator with extensive functions for mathematics, statistics, programming, and engineering. It includes programmer functions, fraction mode, probability distributions, and a stopwatch, offering a comprehensive tool for complex calculations.
- RPN scientific calculator implementation
- Programmer functions (binary, octal, hexadecimal)
- Fraction mode and probability distributions
- Stopwatch with real-time clock
- Mathematical, statistical, and financial functions
- Unit conversions and physical constants
- Extended character sets for multiple languages
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WP 34s is the most powerful and complete implementation of a classic RPN scientific calculator. Now available on iOS too (see the support site for other emulators and for the real stuff). The function set of the WP 34S is based on the most powerful programmable RPN calculators built so far and we expanded the set, incorporating programmer functions (base 2, 8 & 16), a fraction mode, probability distributions, a stopwatch... We also included numerous additional useful functions for mathematics, statistics, physics, engineering, programming, I/O, etc., such as: + Euler’s Beta and Riemann’s Zeta functions, Bernoulli and Fibonacci numbers, Lambert’s W, the error function, and the Chebyshev, Hermite, Laguerre, and Legendre orthogonal polynomials (no more need to carry heavy printed tables), + many statistical distributions and their inverses: Poisson, Binomial, Geometric, Cauchy-Lorentz, Exponential, Logistic, Weibull, Lognormal, and Gaussian, + programmable sums and products, first and second derivatives, solving quadratic equations for real and complex roots, + testing for primality, + integer computing in fifteen bases from binary to hexadecimal, + extended date and time operations and a stopwatch3 based on a real-time clock, + financial operations such as mean rate of return and margin calculations, + 88 conversions, mainly from old Imperial to universal SI units and vice versa, + 50 fundamental physical constants as accurate as used today by national standards institutes such as NIST or PTB, plus a selection of important constants from mathematics, astronomy, and surveying, + Greek and extended Latin letters covering the languages of almost half of the world’s population (upper and lower case in two font sizes), plus mathematical symbols. A beginner manual can be downloaded at http://sourceforge.net/projects/wp34s/files/doc/WP_34S_Beg_Guide.pdf and a full, very complete version at http://sourceforge.net/projects/wp34s/files/doc/Manual_wp_34s_3_1.pdf
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
Screenshots
Verdict
The clearest difference is price: WP 34s at Free against Pascal's $2.99. WP 34s also leads on rating (4.7 vs 4.0) and in-app purchases (none vs 3). Pascal's advantage is update cadence (every 2 weeks vs every 4 months). On ratings volume, 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
WP 34s is free to download; Pascal costs $2.99 up front. Pascal sells 3 one-off in-app purchases. WP 34s asks for nothing beyond the download.
WP 34s holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 28 and 23 respectively. Written reviews point the same way: 93% of WP 34s's written reviews are positive against 68% of Pascal's.
WP 34s ships an update every 4 months, Pascal every 2 weeks. The most recent releases landed on September 20, 2026 and October 21, 2026 respectively.
| Parameter | WP 34s | Pascal |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.7 (28 ratings) — better | 4.0 (23 ratings) |
| Positive reviews | 92.6% of reviews — better | 68.3% of reviews |
| Number of ratings | 28 — better | 23 |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Pascal Meheut | Andrew Wei |
Customer experience
WP 34s
Pascal
Bugs and requests
WP 34s
Not enough reviews yet to summarise bugs or 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
In-app purchases
WP 34s
No in-app purchases
Pascal
- Theme Pack$0.99
- Graphing Calculator$1.99
- Programmer Calculator$1.99









