Comparison

my41CX vs RouteGuard

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

my41CX

Experience the most accurate HP-41CX calculator emulation. This app provides full microcode-level emulation of the original NUT processor, ensuring 100% hardware-accurate behavior. It features a modern interface, expandable ROM modules, and built-in documentation for a classic yet contemporary user experience.

Highlights
  • True microcode emulation
  • Modern user interface
  • Expandable with ROM modules
  • Built-in documentation
  • 100% hardware-accurate behavior
Read full 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/

About

RouteGuard

This app provides fleet monitoring and detailed marine weather forecasts. It displays ship positions, routes, and planned tracks alongside wind, wave, and pressure forecasts. Fleet performance data, including speed and consumption alerts, is also available.

Highlights
  • Ship positions and routes
  • Marine weather forecasts
  • Wind, waves, and pressure data
  • Fleet performance alerts
  • 3D globe navigation
  • Real-time decision support
Read full description

Revolutionary and visually stunning, RouteGuard App is the spectacular fleet monitoring and -weather app from MeteoGroup. RouteGuard App, based on the most stunning consumer app MeteoEarth, provides ship positions, routes and planned tracks, combined with weather and ocean forecasts. Wind, waves, tropical storms, pressure, global currents and more weather forecasts are at your fingertips. The fleet pop-up labels show alerts for performance on speed and consumption. The fleet overview table and its details tables shows all the data you need: performance, weather, fuel consumption, speeds and distances, reported positions. • Navigate the 3D globe • Zoom in and out and spin seamlessly from place to place • Pause to highlight particular weather conditions and move easily back and forward • Search for you vessels and for the weather forecast for any place on earth The weather forecasts are based on our own weather model: the Nautical MeteoBase, which is the most accurate weather forecast for global marine operations. RouteGuard is a professional service available to MeteoGroup’s customers only and has been developed specifically to support fleet operators in their responsible jobs. With detailed marine weather forecasts in combination with fleet monitoring produced 24/7/365, all those involved in fleet management now have access to real-time decisions support data on the go.

Screenshots

my41CX4 screens

Verdict

The call

The clearest difference is review sentiment: my41CX at 43% against RouteGuard's 0%. my41CX also leads on rating (5.0 vs 2.7) and device support (3 vs 1). RouteGuard's advantage is in-app purchases (none vs 3) and ratings volume (3 vs 1). On price, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. my41CX sells 3 in-app purchases, starting at $0.99 per month. RouteGuard asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

my41CX holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 43% of my41CX's written reviews are positive against 0% of RouteGuard's.

UpkeepUpdate frequency

my41CX ships an update every 2 months, RouteGuard every 3 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
my41CX versus RouteGuard: the parameters behind the verdict, then further details
Parametermy41CXRouteGuard
PriceFreeFree
Rating5.0 (1 ratings) — better2.7 (3 ratings)
Positive reviews43.4% of reviews — better0.0% of reviews
Number of ratings13 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPad
Requires iOS26.08.3 — better
Further details — not scored
Size5 MB0 MB
Age rating4+4+
DeveloperMiroslav PerovicDTN Germany GmbH.

Customer experience

my41CX

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews53 reviews
Positive43.4%
Neutral9.4%
Negative47.2%

RouteGuard

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

my41CX

Reported bugs

38 issues
  • Cannot enter anything via keyboard on Mac
  • Locks up when running a program
  • Crashes under IOS 13.2.3
  • Application quits after touching screen
  • Keys 'V' and 'W' inverted when ALPHA mode is switched on
Show 33 more
  • GUI no longer accurate visual reproduction
  • Incompatible with IOS 13.2
  • Crashes systematically on hitting any key
  • App closes after launch
  • Not functional
  • Unusable
  • Crashes on startup
  • App closes when touching keys
  • Reverts to main screen when pressing buttons
  • Flashes on screen and disappears
  • Instant shutdown when trying to use it
  • Shuts down as soon as screen is touched
  • Shuts down when attempting to tap any key
  • Crashes constantly after IOS update
  • Closes the app as soon as you touch the screen
  • Stopped working with iso 13.3
  • Crashes as soon as I touch a key
  • Broken on iOS 13.2
  • Font for unshifted keys too small
  • Functions faint and blurry
  • Freezes when executing commands
  • Low contrast
  • No key feedback
  • Unstable and crashes
  • Slow performance
  • Stopwatch function not real time
  • Memory not reliably retained
  • Loses all work
  • Massive memory leaks
  • Trashes program
  • Incredibly slow
  • Locks up
  • Glitches while switching modes

Requested features

5 requests
  • Larger buttons
  • Option for tactile/Haptic feedback for keys
  • Option for beep sound
  • Instructions for mod files
  • Better Mac UI

RouteGuard

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

my41CX

Subscriptions2
  • Monthly$0.991 Month
  • Yearly Premium$9.991 Year
One-time1
  • Unlock Full App$19.99
None

RouteGuard

No in-app purchases

Questions

Is my41CX free?
my41CX is free to download, with in-app purchases available.
Is RouteGuard free?
RouteGuard is free to download, with no in-app purchases.
Which has better reviews, my41CX or RouteGuard?
my41CX is rated higher. my41CX averages 5.0 out of 5 from 1 ratings, while RouteGuard averages 2.7 from 3 ratings.
Do my41CX or RouteGuard have ads?
Neither my41CX nor RouteGuard shows ads.
Which is updated more often, my41CX or RouteGuard?
my41CX ships an update every 2 months, and RouteGuard every 3 months. Most recently, my41CX was updated on October 29, 2026 and RouteGuard on October 24, 2026.

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