# RPN vs WP 34s

The clearest difference is price: WP 34s at Free against RPN's $2.99. WP 34s also leads on review sentiment (93% vs 71%) and ratings volume (29 vs 6). On rating, update cadence, ads and in-app purchases there is nothing between them.

WP 34s is free to download; RPN costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for RPN against 4.7 for WP 34s. Both are backed by a comparable volume of ratings — 6 and 29 respectively. Written reviews are what separate them: 71% of RPN's written reviews are positive against 93% of WP 34s's.

Both ship on a similar rhythm, roughly every 4 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | RPN | WP 34s |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/rpn-45-hd/id424873500/reviews)** | [4.7 (29 ratings)](https://appshunter.io/ios/app/wp-34s/id620255094/reviews) |
| Number of ratings | 6 | **29** |
| Positive reviews | 70.8% of reviews | **92.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 58 MB | 11 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Pascal Meheut](https://appshunter.io/developer/620255097) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-45-hd/id424873500)

This app meticulously simulates a 1973 scientific calculator, offering an authentic vintage experience with advanced features. It includes a paper tape printer, complex number calculations, and enhanced statistical functions. Users can customize its appearance and even use it as a timer or chess clock.

**Highlights:** Photo-realistic HP-45 simulation, Animated keys with feedback, Full HP-45 function implementation, Paper tape printer with export, Complex number calculations, Enhanced statistical functions, Timer and chess clock modes

**Features:** macOS Compatibility

**In-app purchases:** none


### WP 34s

[App page](https://appshunter.io/ios/app/wp-34s/id620255094)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

RPN costs $2.99, with no in-app purchases.

### Is WP 34s free?

WP 34s is free to download, with no in-app purchases.

### Which has better reviews, RPN or WP 34s?

RPN is rated higher. RPN averages 4.8 out of 5 from 6 ratings, while WP 34s averages 4.7 from 29 ratings.

### Do RPN or WP 34s have ads?

Neither RPN nor WP 34s shows ads.

### Which is updated more often, RPN or WP 34s?

RPN ships an update every 4 months, and WP 34s every 4 months. Most recently, RPN was updated on October 23, 2026 and WP 34s on October 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*