# i48 vs WP 31s

The clearest difference is review sentiment: WP 31s at 100% against i48's 54%. WP 31s also leads on rating (4.9 vs 3.5) and monetization model (free vs paid). i48's advantage is ratings volume (196 vs 15) and update cadence (every 4 months vs every 10 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

WP 31s holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: i48 has 196 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 54% of i48's written reviews are positive against 100% of WP 31s's.

i48 ships an update every 4 months, WP 31s every 10 months. The most recent releases landed on October 8, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | i48 | WP 31s |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (196 ratings)](https://appshunter.io/ios/app/i48/id329454950/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/wp-31s/id973621300/reviews)** |
| Number of ratings | **196** | 15 |
| Positive reviews | 54.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Paid | **Free** |
| Size | 4 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Automagic Software Pty Ltd](https://appshunter.io/developer/329454953) | [Pascal Meheut](https://appshunter.io/developer/620255097) |

## What reviewers say

### i48

[App page](https://appshunter.io/ios/app/i48/id329454950)

This application emulates the HP48GX calculator on your iPhone or iPod touch. It allows you to perform complex calculations like matrix operations and function integration on the go.

**Highlights:** HP48GX calculator emulation, Matrix calculations, Function integration, Mobile calculator, On-the-go calculations

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Realistic HP48 emulation
- 🚀 Great functionality and features
- 💡 Useful unit conversions
- 👍 Familiar interface for HP48 users

**What reviewers complain about**

- 🐛 Freezes and crashes
- 🐛 Unresponsive buttons and input issues
- 🐛 Compatibility issues with newer iOS versions
- 🔋 Performance and battery drain problems

**Reported bugs**

- Memory recovery prompt not working
- Cursor keys behaving erratically
- Equation solver locking up the app
- Keyboard issues on certain devices

**Requested features**

- Landscape mode support
- Improved display resolution and graphics
- Haptic feedback for button presses
- Ability to assign units to numbers


### WP 31s

[App page](https://appshunter.io/ios/app/wp-31s/id973621300)

This app emulates a classic RPN scientific calculator, offering a rich function set for daily use with a simplified interface. It's based on the more complex WP 34s but is designed for easier operation.

**Highlights:** RPN scientific calculator emulation, Rich function set, Simplified, less cluttered keyboard, Based on WP 34s, Available on iOS

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i48 free?

i48 is free to download, with no in-app purchases.

### Is WP 31s free?

WP 31s is free to download, with no in-app purchases.

### Which has better reviews, i48 or WP 31s?

WP 31s is rated higher. i48 averages 3.5 out of 5 from 196 ratings, while WP 31s averages 4.9 from 15 ratings.

### Do i48 or WP 31s have ads?

Neither i48 nor WP 31s shows ads.

### Which is updated more often, i48 or WP 31s?

i48 ships an update every 4 months, and WP 31s every 10 months. Most recently, i48 was updated on October 8, 2026 and WP 31s on September 25, 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.*