WP 34s vs One Balance
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
Read full descriptionHide full description
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
One Balance
Read full descriptionHide full description
Users can create accounts through One Balanchuan, which supports account logout and deletion (logging out of an account only means logging out, deleting an account will clear the information of the account locally and in the cloud). The main function of One Balanchuan is to connect the device Bluetooth, control the pointer switch, pointer color, etc. of the device, and the APP will display some device information, such as device color, device time, device battery level, etc One Balance controls the operation video link of specified devices:http://snjzxmozw.sabkt.gdipper.com/video/demonstrate.mp4
Screenshots
Verdict
The clearest difference is update cadence: One Balance at every 4 weeks against WP 34s's every 4 months. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WP 34s ships an update every 4 months, One Balance every 4 weeks. The most recent releases landed on September 20, 2026 and October 5, 2026 respectively.
| Parameter | WP 34s | One Balance |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (28 ratings) — better | — |
| Positive reviews | 92.6% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Every 4 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 69 MB |
| Age rating | 4+ | 17+ |
| Developer | Pascal Meheut | wallle |
In-app purchases
WP 34s
No in-app purchases
One Balance
No in-app purchases









