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Information
Apple ID979041950
Bundle IDcom.my41cx.ios
SellerSeller
Min iOS26.0
Device familiesmac, iphone, ipad
Released2015-04-01
Copyright© Miroslav Perovic 2015-2026
Privacy policyLink ↗
Preview 3 platforms
iPhone 4 images
iPad 4 images
Mac 7 images
What’s New Version 3.0.5
All documentation is now free to read!
• Every HP-41 manual and reference is now open to everyone — no subscription needed to read them.
• Free users can keep 2 documents downloaded at a time. Upgrade to Premium for an unlimited offline library.
• Subscription handling improvements and minor fixes.
Thanks for using my41CX!
Description
The most accurate HP-41CX emulator available. my41cx delivers full microcode-level emulation of the legendary NUT processor, reproducing every behavior of the original hardware with complete fidelity.
Built and refined over three major releases, my41cx v3 combines the precision of real hardware emulation with a modern interface designed for daily use.
Key Features:
- True Microcode Emulation: Not a simulation—an actual NUT processor emulator running original microcode for 100% hardware-accurate behavior.
- Modern Interface, Classic Soul: A completely redesigned UI built for today's devices while preserving the authentic feel of the original calculator.
- Expandable with ROM Modules: Load external ROM modules to extend the system, just like the real HP-41CX.
- Built-in Documentation: Access manuals and reference material directly within the app—no need to search for PDFs.
Perfect for engineers, students, scientists, and anyone who appreciates the elegance of HP's finest programmable calculator.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Capabilities
In-App Purchases
Accessibility
ipadiphonemacrealityDevicetvoswatch
Version history 12 versions
Build 887501170v3.0.52026-06-27 16:32:38
All documentation is now free to read!
• Every HP-41 manual and reference is now open to everyone — no subscription needed to read them.
• Free users can keep 2 documents downloaded at a time. Upgrade to Premium for an unlimited offline library.
• Subscription handling improvements and minor fixes.
Thanks for using my41CX!
Build 885068507v3.0.32026-04-29 20:06:14
Bug fixes:
• Fixed Time module stopwatch — stopwatch now starts, runs, and stops correctly
• Fixed timer interrupt handling that could cause the calculator to lock up
• Improved reliability of clock and alarm functions
Thanks to everyone who reported the issue!
Build 882832090v3.0.22026-02-26 23:36:01
- Fixed Haptic Feedback: Resolved an issue where haptic vibration and sound feedback were not triggering on some devices.
- General Improvements: Minor bug fixes and stability enhancements for a better emulation experience.
Build 882476145v3.0.12026-02-18 09:26:41
Fixed a display issue where button labels appeared truncated or oversized on devices with large text accessibility settings enabled
Build 881313971v3.0.02026-02-11 16:22:11
my41cx 3.0 is a major update:
- Completely Redesigned Interface: The UI has been rebuilt from the ground up—cleaner, faster, and more intuitive while staying true to the original aesthetic.
- Integrated Library: Manuals and documentation are now accessible directly within the app.
- Under the Hood: Numerous improvements to emulation stability and performance.
Build 842409214v2.0.12021-05-28 20:39:36
- Fixed some small UI bugs
- Added haptic feedback
Build 840553693v2.0.02021-02-19 22:56:47
Completly rewritten using SwiftUI and Combine.
Works on iOS 13 and later.
Build 828204142v1.1.02018-09-13 20:17:15
- fixed losing memory after restart aplication
- minor optimizations
- other small bug fixing
Build 816995477v1.0.32016-04-09 20:00:34
iOS 9.3.1 compatibility issues
Build 816501595v1.0.22016-02-24 02:15:29
Bug fixing & Swift 2 Compatibility
Build 812444041v1.0.12015-05-22 23:14:21
Fixed "Memory Lost" problem.
Build 812047628v1.02015-03-31 19:23:46
No pricing data captured yet — comparisons appear once the app has paid storefronts or in-app purchases.
Availability 1 of 1 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
| US | en-US | Free | 2 | 5.0 | 3.0.5 |
Change log 16 changes · US
✎
releaseNotes updated
All documentation is now free to read!
• Every HP-41 manual and reference is now open to everyone — no subscription needed to read them.
• Free users can keep
✎
description updated
The most accurate HP-41CX emulator available. my41cx delivers full microcode-level emulation of the legendary NUT processor, reproducing every behavior of the o
✎
subtitle updated
HP-41 Microcode Emulator
✎
name updated
my41CX
◆
Version 3.0.5 released
All documentation is now free to read!
• Every HP-41 manual and reference is now open to everyone — no subscription needed to read them.
• Free users can keep 2 documents downloaded at a time. Upgrade to Premium for an unlimited offline li
◆
Version 3.0.3 released
Bug fixes:
• Fixed Time module stopwatch — stopwatch now starts, runs, and stops correctly
• Fixed timer interrupt handling that could cause the calculator to lock up
• Improved reliability of clock and alarm functions
Thanks to ev
◆
Version 3.0.2 released
- Fixed Haptic Feedback: Resolved an issue where haptic vibration and sound feedback were not triggering on some devices.
- General Improvements: Minor bug fixes and stability enhancements for a better emulation experience.
◆
Version 3.0.1 released
Fixed a display issue where button labels appeared truncated or oversized on devices with large text accessibility settings enabled
◆
Version 3.0.0 released
my41cx 3.0 is a major update:
- Completely Redesigned Interface: The UI has been rebuilt from the ground up—cleaner, faster, and more intuitive while staying true to the original aesthetic.
- Integrated Library: Manuals and documentation a
◆
Version 2.0.1 released
- Fixed some small UI bugs
- Added haptic feedback
◆
Version 2.0.0 released
Completly rewritten using SwiftUI and Combine.
Works on iOS 13 and later.
◆
Version 1.1.0 released
- fixed losing memory after restart aplication
- minor optimizations
- other small bug fixing
◆
Version 1.0.3 released
iOS 9.3.1 compatibility issues
◆
Version 1.0.2 released
Bug fixing & Swift 2 Compatibility
◆
Version 1.0.1 released
Fixed "Memory Lost" problem.
◆
Version 1.0 released