# Plus42 vs Cytiva XChangr

The clearest difference is price: Cytiva XChangr at Free against Plus42's $9.99. Plus42's advantage is update cadence (weekly vs every 8 months) and chart position (#119 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

Plus42 ships an update weekly, Cytiva XChangr every 8 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | Plus42 | Cytiva XChangr |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 months |
| Monetization | Free | — |
| Best chart rank | **#119** | — |
| Size | 11 MB | 45 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Okken](https://appshunter.io/developer/337692632) | [GLOBAL LIFE SCIENCES SOLUTIONS USA LLC](https://appshunter.io/developer/1560202707) |

## What reviewers say

### Plus42

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

**Currently charting:** #119 Top Paid · Utilities (US App Store)

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


### Cytiva XChangr

[App page](https://appshunter.io/ios/app/cytiva-xchangr/id6736617892)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Plus42 free?

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

### Is Cytiva XChangr free?

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

### Do Plus42 or Cytiva XChangr have ads?

Neither Plus42 nor Cytiva XChangr shows ads.

### Which is updated more often, Plus42 or Cytiva XChangr?

Plus42 ships an update weekly, and Cytiva XChangr every 8 months. Most recently, Plus42 was updated on October 30, 2026 and Cytiva XChangr on October 30, 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.*