# Plus42 vs my59

The clearest difference is price: my59 at Free against Plus42's $9.99. Plus42's advantage is in-app purchases (none vs 3) and iOS requirement (15.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

my59 is free to download; Plus42 costs $9.99 up front. my59 sells 3 in-app purchases, starting at $0.99 per month. Plus42 asks for nothing beyond the download.

Plus42 ships an update weekly, my59 every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Plus42 | my59 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (79 ratings)](https://appshunter.io/ios/app/plus42/id1597963622/reviews)** | — |
| Number of ratings | **79** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 11 MB | 11 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Okken](https://appshunter.io/developer/337692632) | [Miroslav Perovic](https://appshunter.io/developer/400748424) |

## What reviewers say

### 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


### my59

[App page](https://appshunter.io/ios/app/my59/id6759532452)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $9.99 | per year |
| Unlock Full App | $19.99 | one-time |


## Frequently asked questions

### Is Plus42 free?

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

### Is my59 free?

my59 is free to download, with in-app purchases available.

### Do Plus42 or my59 have ads?

Neither Plus42 nor my59 shows ads.

### Which is updated more often, Plus42 or my59?

Plus42 ships an update weekly, and my59 every 2 weeks. Most recently, Plus42 was updated on October 30, 2026 and my59 on October 28, 2026.

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