# HP41CV vs Plus42

The clearest difference is review sentiment: Plus42 at 92% against HP41CV's 12%. Plus42 also leads on rating (4.9 vs 2.7) and update cadence (weekly vs every 73 months). HP41CV's advantage is price (Free vs $9.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

HP41CV is free to download; Plus42 costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Plus42 holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 21 and 79 respectively. Written reviews point the same way: 12% of HP41CV's written reviews are positive against 92% of Plus42's.

HP41CV ships an update every 73 months, Plus42 weekly. The most recent releases landed on September 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | HP41CV | Plus42 |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [2.7 (21 ratings)](https://appshunter.io/ios/app/hp41cv/id1214637000/reviews) | **[4.9 (79 ratings)](https://appshunter.io/ios/app/plus42/id1597963622/reviews)** |
| Number of ratings | 21 | **79** |
| Positive reviews | 11.8% of reviews | **92.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 73 months | **Weekly** |
| Monetization | Free | Free |
| Size | 8 MB | 11 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jurgen Anton Strohmer](https://appshunter.io/developer/1214636999) | [Thomas Okken](https://appshunter.io/developer/337692632) |

## What reviewers say

### HP41CV

[App page](https://appshunter.io/ios/app/hp41cv/id1214637000)

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.

**Highlights:** HP-41 CV calculator emulation, UPN (Reverse Polish Notation) calculation, Basic UPN course with examples, Core functions available for free, Optional advanced features

**Features:** macOS Compatibility

**In-app purchases:** none


### Plus42

[App page](https://appshunter.io/ios/app/plus42/id1597963622)

This advanced scientific calculator simulates the classic HP-42S RPN calculator with enhanced features. It offers algebraic expressions, unit conversions, directories for storage, a larger resizable display, financial functions, and 2D plotting with integral and root finding.

**Highlights:** HP-42S RPN calculator simulation, Algebraic expressions, Attached units and conversions, Program and variable directories, Resizable 8-row, 22-column display, Time value of money and amortization, 2D function plotting with zoom and pan

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HP41CV free?

HP41CV is free to download, with no in-app purchases.

### Is Plus42 free?

Plus42 costs $9.99, with no in-app purchases.

### Which has better reviews, HP41CV or Plus42?

Plus42 is rated higher. HP41CV averages 2.7 out of 5 from 21 ratings, while Plus42 averages 4.9 from 79 ratings.

### Do HP41CV or Plus42 have ads?

Neither HP41CV nor Plus42 shows ads.

### Which is updated more often, HP41CV or Plus42?

HP41CV ships an update every 73 months, and Plus42 weekly. Most recently, HP41CV was updated on September 26, 2026 and Plus42 on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*