# WP 34s vs RLM

The clearest difference is rating: WP 34s at 4.7 against RLM's 4.1. WP 34s also leads on in-app purchases (none vs 4) and review sentiment (93% vs 80%). RLM's advantage is update cadence (monthly vs every 4 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. RLM sells 4 in-app purchases, starting at $0.49 per month. WP 34s asks for nothing beyond the download.

WP 34s holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 28 and 17 respectively. Written reviews point the same way: 93% of WP 34s's written reviews are positive against 80% of RLM's.

WP 34s ships an update every 4 months, RLM monthly. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | WP 34s | RLM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (28 ratings)](https://appshunter.io/ios/app/wp-34s/id620255094/reviews)** | [4.1 (17 ratings)](https://appshunter.io/ios/app/rlm-15cx/id1636646608/reviews) |
| Number of ratings | **28** | 17 |
| Positive reviews | **92.6% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 6 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pascal Meheut](https://appshunter.io/developer/620255097) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## 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


### RLM

[App page](https://appshunter.io/ios/app/rlm-15cx/id1636646608)

This advanced scientific calculator emulates the functionality of the HP-15C, offering comprehensive tools for finance, business, statistics, and scientific calculations. It supports programming, equation solving, and unit conversions, optimized for iOS devices.

**Highlights:** Programmable advanced scientific calculator, Finance and business calculation menus, Statistics and probability functions, Complex numbers and matrix operations, Unit and currency conversions, Equation solver and programming capabilities

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.49 | per month |
| Semi-Annual Subscription | $2.99 | per 6 months |
| Annual Subscription | $5.99 | per year |
| One-Time Purchase | $9.99 | one-time |


## Frequently asked questions

### Is WP 34s free?

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

### Is RLM free?

RLM is free to download, with in-app purchases available.

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

WP 34s is rated higher. WP 34s averages 4.7 out of 5 from 28 ratings, while RLM averages 4.1 from 17 ratings.

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

Neither WP 34s nor RLM shows ads.

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

WP 34s ships an update every 4 months, and RLM monthly. Most recently, WP 34s was updated on September 20, 2026 and RLM on September 10, 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.*