# MeRSZ vs Turdus

The clearest difference is in-app purchases: Turdus at none against MeRSZ's 1. Turdus also leads on update cadence (every 3 weeks vs every 4 months) and review sentiment (23% vs 14%). MeRSZ's advantage is iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. MeRSZ sells 1 in-app purchase, starting at $39.99 per year. Turdus asks for nothing beyond the download.

MeRSZ ships an update every 4 months, Turdus every 3 weeks. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | MeRSZ | Turdus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.3% of reviews | **23.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Subscription | **Free** |
| Size | 44 MB | 63 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Akadémiai Kiadó Zrt.](https://appshunter.io/developer/497344041) | [Magyar Madartani es Termeszetvedelmi Egyesulet](https://appshunter.io/developer/1597719440) |

## What reviewers say

### MeRSZ

[App page](https://appshunter.io/ios/app/mersz/id1419701352)

Access a vast online library of scholarly books, textbooks, and reference materials across numerous subject areas. Read, browse, bookmark, cite, and download content for offline use on any device. The collection is regularly updated with new titles.

**Highlights:** Access hundreds of scholarly books, Search deep structured content, Create bookmarks and notes, Download books for offline reading, Filter by subject, Copy and print text, Cite in multiple styles

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MeRSZ csomag | $39.99 | per year |


### Turdus

[App page](https://appshunter.io/ios/app/turdus/id1600277108)

This application assists observers in their work with Birdlife Hungary. It provides tools and resources for birdwatching activities and data collection.

**Highlights:** Support for Birdlife Hungary observers, Data collection tools, Birdwatching resources, Observer assistance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MeRSZ free?

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

### Is Turdus free?

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

### Do MeRSZ or Turdus have ads?

Neither MeRSZ nor Turdus shows ads.

### Which is updated more often, MeRSZ or Turdus?

MeRSZ ships an update every 4 months, and Turdus every 3 weeks. Most recently, MeRSZ was updated on October 14, 2026 and Turdus on October 11, 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.*