# WP 34s vs RPN

The clearest difference is price: WP 34s at Free against RPN's $3.99. WP 34s also leads on review sentiment (93% vs 50%) and rating (4.7 vs 4.0). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

WP 34s is free to download; RPN costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WP 34s holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: WP 34s has 29 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 93% of WP 34s's written reviews are positive against 50% of RPN's.

WP 34s ships an update every 4 months, RPN every 3 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | WP 34s | RPN |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (29 ratings)](https://appshunter.io/ios/app/wp-34s/id620255094/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/rpn-65-pro/id1033260498/reviews) |
| Number of ratings | **29** | 4 |
| Positive reviews | **92.6% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Size | 11 MB | 86 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pascal Meheut](https://appshunter.io/developer/620255097) | [CuVee Software](https://appshunter.io/developer/424873503) |

## What reviewers say

### 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


### RPN

[App page](https://appshunter.io/ios/app/rpn-65-pro/id1033260498)

Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPad. This app offers virtual program and data cards, a powerful card manager, and includes 170 original HP programs to get you started.

**Highlights:** Virtual program and data cards, Virtual paper tape printer, Database-driven card manager, Create, delete, label, and organize cards, Share via email, AirDrop, Dropbox, print, Paste and run existing HP-65 listings, Live display of stack and registers, Four operational modes including 'Super-65'

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WP 34s free?

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

### Is RPN free?

RPN costs $3.99, with no in-app purchases.

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

WP 34s is rated higher. WP 34s averages 4.7 out of 5 from 29 ratings, while RPN averages 4.0 from 4 ratings.

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

Neither WP 34s nor RPN shows ads.

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

WP 34s ships an update every 4 months, and RPN every 3 months. Most recently, WP 34s was updated on October 23, 2026 and RPN on October 20, 2026.

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