HP41CV vs bcRPN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HP41CV
Experience the functionality of a classic 90s pocket calculator on your iPhone. This app offers UPN calculation with a basic course for new users. Many core functions are available for free, with advanced features offered as optional upgrades.
- HP-41 CV calculator emulation
- UPN (Reverse Polish Notation) calculation
- Basic UPN course with examples
- Core functions available for free
- Optional advanced features
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The HP-41 CV for your iPhone! The HP-41 CV was the best and handiest Pocket Calculator in the 90íst. (Part of the Apollo missions!) A UPN calculation with the same genial handling is now available for your iPhone. For all users, not familiar with the UPN Concept, a Basic course with examples is included. The most functions of the HP 41 CV are available free. In addition statistic functions, programmability, persistent Key assignment and new functions like printing will be available as option.
bcRPN
This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.
- Reverse Polish Notation (RPN) input
- Complex number calculations
- Extended precision math
- Unlimited stack depth
- Undo functionality (up to 10 operations)
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This is a RPN (Reverse Polish Notation) Calculator. It supports complex numbers and uses extended precision math for all operations. The stack depth is unlimited. In case a mistake was made, up to 10 operations can be undone. RPN calculators work by entering the numbers on the stack first, then selecting the operation. For example to add 3 + 4, press: 3 Enter 4 +
Screenshots
Verdict
The clearest difference is review sentiment: bcRPN at 80% against HP41CV's 12%. bcRPN also leads on rating (4.8 vs 2.8) and update cadence (every 22 months vs every 73 months). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
bcRPN holds the better App Store score, 4.8 against 2.8. Both are backed by a comparable volume of ratings — 22 and 8 respectively. Written reviews point the same way: 12% of HP41CV's written reviews are positive against 80% of bcRPN's.
HP41CV ships an update every 73 months, bcRPN every 22 months. Both last shipped on October 24, 2026.
| Parameter | HP41CV | bcRPN |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (22 ratings) | 4.8 (8 ratings) — better |
| Positive reviews | 11.8% of reviews | 80.0% of reviews — better |
| Number of ratings | 22 — better | 8 |
| Update frequency | Every 73 months | Every 22 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Jurgen Anton Strohmer | Paul Wilkins |
Customer experience
HP41CV
bcRPN
In-app purchases
HP41CV
No in-app purchases
bcRPN
No in-app purchases
