# merkur vs CASeasy+

The clearest difference is price: merkur at Free against CASeasy+'s $22.99. CASeasy+'s advantage is update cadence (every 2 months vs every 9 months) and review sentiment (25% vs 0%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

merkur is free to download; CASeasy+ costs $22.99 up front. Neither carries in-app purchases, so what you see is what you pay.

merkur ships an update every 9 months, CASeasy+ every 2 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | merkur | CASeasy+ |
| --- | --- | --- |
| Price | **Free** | $22.99 |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 31 MB | 29 MB |
| Requires iOS | **12.0** | 13.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Merkur Verlag Rinteln Hutkap GmbH & Co.KG](https://appshunter.io/developer/1313723829) | [Westermann Digital GmbH](https://appshunter.io/developer/1171669560) |

## What reviewers say

### merkur

[App page](https://appshunter.io/ios/app/merkur-medien/id1313723830)

Access your digital book collection offline after logging in and downloading your content. Navigate books easily with a table of contents, save notes, and mark text. Enjoy a seamless reading experience without an internet connection.

**Highlights:** Offline access to downloaded books, Adjustable page display (single/double), Linked table of contents for navigation, Save personal notes on pages, Highlight and cover text sections

**In-app purchases:** none


### CASeasy+

[App page](https://appshunter.io/ios/app/caseasy-plus/id1479683038)

This app provides a computer algebra system designed for educational use on tablets. It simplifies solving algebraic equations with an intuitive interface and essential school-level functions. Features include a function plotter, a comprehensive calculator, and statistical analysis tools.

**Highlights:** Algebraic equation solving, Function plotter and analyzer, Comprehensive calculator with function catalog, Statistical analysis and charting, Exam mode with activity logging, Multiple user profiles for settings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is merkur free?

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

### Is CASeasy+ free?

CASeasy+ costs $22.99, with no in-app purchases.

### Do merkur or CASeasy+ have ads?

Neither merkur nor CASeasy+ shows ads.

### Which is updated more often, merkur or CASeasy+?

merkur ships an update every 9 months, and CASeasy+ every 2 months. Most recently, merkur was updated on October 11, 2026 and CASeasy+ on October 24, 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.*