# Emu50g

> HP50g scientific calculator emulator with original skin and advanced features. (iPhone/iPad app by TheWinterStorm (Marek Zima).)

- Source: https://appshunter.io/ios/app/emu50g/id553279622 (this page in markdown: same URL + `.md`)
- Developer: [TheWinterStorm (Marek Zima)](https://appshunter.io/developer/434409253)
- Category: Utilities, Education
- Price: $8.99
- Rating: 4.00/5 from 46 App Store ratings · 148 written reviews indexed
- Age rating: +4
- Requires: iOS 8.0 · 44 MB
- Languages: American English
- Released: 2012-09-05
- Data updated: 2026-08-30
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/emu50g/id553279622/reviews.md

## What is Emu50g?

Emu50G is an emulator for the famous HP50g scientific calculator with its original skin. Carry your favorite calculator along with you every day and use it together with your favorite library!

Features:
--------
• Full emulation of the HP50g calculator. (You should refer to original HP50g user guide to learn how to use it.)
• Save (backup) actual calc state and create new one.
• Load saved state (restore backup).
• Save and load your favorite libraries, etc. (you must provide them by yourself)
• Copy and paste your calculator results or screenshots to and from the iPhone/iPod clipboard.
• Transfer files from and to your computer (WiFi and LAN required).
• Original HD skin files.
• Support for landscape (currently for Whole Sized skin – iPad default skin)
• Support of sound effects.
• Tap the LCD to get more information.

## Key features

- Full HP50g calculator emulation
- Save and load calculator states
- Manage and load custom libraries
- Copy/paste to device clipboard
- File transfer via WiFi/LAN
- Original HD skin
- Sound effects

## What do users think of Emu50g?

Overall sentiment: negative

**Pros**

- 👍 Functions like the real calculator
- 🚀 Fast calculations
- 📱 Convenient mobile access
- 💡 Good for engineering calculations
- ✨ Familiar RPN interface
- ✅ Works on various iOS versions (sometimes)
- 💻 Good graphics and display
- 💰 Saves money compared to physical calculator

**Cons**

- 🐛 Frequent crashes and freezes
- 🐌 Slow performance and lag
- ❌ Does not work after iOS updates
- 🚫 Buttons are too small/difficult to press
- 📉 Poor screen resolution/font rendering
- ⚠️ Data loss issues (Port 2)
- 💸 Expensive for a non-working app
- ❌ Inaccessible file structure
- ❓ Difficulty installing programs/libraries
- 🚫 Key stroke delay
- ❌ App does not open/load
- 🐛 Unstable code
- 🐛 App closes immediately upon opening
- 🐛 Display issues (hash lines, blank screen)

**Commonly reported bugs**

- App crashes on startup
- App freezes during use
- App stops working after iOS updates
- App does not open
- App closes immediately after opening
- Data in Port 2 is lost
- Key presses are not registered or delayed
- Display shows garbage or is blank
- Unable to load skin
- Programs/libraries are corrupted or disappear
- File structure is inaccessible
- Copy/paste functionality is broken
- Input mode indicators are missing
- Calculator screen doesn't turn on
- Error message 'cant open XML'
- Calculations are incorrect (e.g., 18/5 = 18/5)

**Most requested features**

- Update application urgently
- Fix iOS compatibility issues
- Improve key sensitivity/button size
- Add high-resolution skin option
- Allow program installation via file manager/iTunes
- Add Viga G program
- Support for SD card emulation
- Improve Port 2 stability
- Option for dark mode
- Better skins with bigger keys
- Support for 64-bit iOS 11
- Make calculator screen larger/occupy full screen
- Allow transfer of programs from physical calculator
- Fix copy/paste to/from stack
- Add input mode indicators (left-shift, right-shift, alpha)
- Fix Port 2 data persistence issue
- Improve visual design of opening screen

## Recent user reviews (10 of 148)

All indexed reviews: https://appshunter.io/ios/app/emu50g/id553279622/reviews.md

### 1/5 — Does NOT Work

*2026-04-21*

Does NOT Work

### 5/5 — iOS 26.3 iPhone 16

*2026-02-17*

Just installed on the iPhone16 pro and fully working. Took a few emails to customer support to sort it out but eventually all works.

### 1/5 — Parou de funcionar

*2026-02-03*

O app chega a abrir como se a calculadora estivesse desligada. Tento aplicar o comando de ligar, mas não há alterações. Percebe-se que qualquer tecla acionada reage como se o comando tenha sido executado, mas não é resposta do comando à calculadora.

### 1/5 — Needs Updating

*2026-01-10*

I loved this app, but it no longer functions under the latest iOS.

### 2/5 — Actualizar aplicación

*2025-09-10, version 1.3.3*

Urge actualizar la aplicación

### 1/5 — Trava

*2025-06-05*

Já perdi minhas fórmulas várias vezes tendo que resetar. Mesmo salvando na memória “flash” da calculadora.

### 5/5 — Apple screw up the app with ios17.7 update

*2024-09-24*

The app worked perfectly before until Apple updates iOS to version 17.7.  Reinstall the app doesn’t help.

### 1/5 — Satish Devani

*2024-05-10*

App Does not open up after reinstalling!

### 2/5 — Great app but urgently needs an update!

*2024-01-06*

Application was working fine until a recent iOS update which causes the application to crash each time it is opened. Please update.

### 4/5 — Muitos bugs

*2023-05-18*

O aplicativo é bom, mas tem muitos bugs as vezes do nada trava tudo no emulador

## Frequently asked questions about Emu50g

### What does Emu50g do?

Emu50g is a mobile application that fully emulates the HP50g scientific calculator. It allows you to use the familiar interface and functionality of the HP50g on your device, including its original skin and sound effects.

### What are the key features of Emu50g?

Key features include full emulation of the HP50g calculator, the ability to save and load calculator states (backups), support for saving and loading custom libraries, copy/paste functionality with your device's clipboard, and file transfer capabilities to and from your computer via WiFi and LAN.

### Is Emu50g free to use?

Yes, Emu50g is available for free. The application does not have any in-app purchases or advertisements, allowing for uninterrupted use of the emulator.

### What devices is Emu50g compatible with?

The app description mentions support for iPhone/iPod and iPad, including support for landscape mode on the iPad with the whole-sized skin. It requires you to provide your own library files.

### How can I transfer files to and from Emu50g?

You can transfer files to and from Emu50g using WiFi and LAN connections. This feature allows you to move data between your computer and the emulator on your device, facilitating the use of custom libraries and saving your work.

## Version history (last 5 releases)

### 1.3.3 — 2017-04-11

This update from Apple will improve the functionality of this app. No new features are included.

- Display enhancement
- Keyboard speed enhancement
- Web server port changed to avoid conflict with other applications
- Compatibility with latest iOS 10

### 1.3.2 — 2013-11-29

iOS7 design and compatibility.
New functions to create new calc, save and load state. It is now possible to backup the actual state of calc.
Corrected binary header for Save Object...
Keypad improvement for iPhone 5 skin.
Users documents and data are now synchronized to iCloud.
Bug fixes.

### 1.3.1 — 2013-01-07

Just (2013) bug fix.

### 1.3 — 2012-12-09

- New (real) HD skins for iPhone 3G/3GS/4/4S, iPhone 5 and iPad
- Some bug fixes

### 1.2 — 2012-11-26

Bug fixes (rotation & copy)

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## More apps by TheWinterStorm (Marek Zima)

- [Math Knight](https://appshunter.io/ios/app/math-knight/id508777293)
- [Gomma](https://appshunter.io/ios/app/gomma/id516701043)

All apps by TheWinterStorm (Marek Zima): https://appshunter.io/developer/434409253

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*