# MP3 Книги vs cMate

The clearest difference is price: MP3 Книги at Free against cMate's $3.99. MP3 Книги also leads on update cadence (every 10 days vs every 81 months). cMate's advantage is review sentiment (100% vs 72%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MP3 Книги is free to download; cMate costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MP3 Книги ships an update every 10 days, cMate every 81 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | MP3 Книги | cMate |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (43 ratings)](https://appshunter.io/ios/app/mp3/id1032988845/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 72.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 81 months |
| Monetization | **Free** | Paid |
| Size | 35 MB | 11 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KinKin Ltd](https://appshunter.io/developer/906102295) | [Maxim Lukyanenko](https://appshunter.io/developer/1496252741) |

## What reviewers say

### MP3 Книги

[App page](https://appshunter.io/ios/app/mp3/id1032988845)

Listen to your favorite audiobooks in MP3 or M4B format without conversion, completely free and without ads. Enjoy a user-friendly interface and elegant design. Add books via computer or cloud services like iCloud and Google Drive.

**Highlights:** Plays MP3 and M4B formats, No conversion needed, Completely free, No advertisements, Cloud service integration (iCloud, Google Drive), User-friendly interface, Elegant design

**Features:** macOS Compatibility

**In-app purchases:** none


### cMate

[App page](https://appshunter.io/ios/app/cmate-isgott/id1497463649)

This application provides the full text of the International Safety Guide for Oil Tankers and Terminals. It offers convenient navigation and search functionality in both English and Russian for safe tanker operations.

**Highlights:** Full text of ISGOTT manual, Bilingual content (English, Russian), Convenient navigation, Content search functionality, Table of contents access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MP3 Книги free?

MP3 Книги is free to download, with no in-app purchases.

### Is cMate free?

cMate costs $3.99, with no in-app purchases.

### Do MP3 Книги or cMate have ads?

Neither MP3 Книги nor cMate shows ads.

### Which is updated more often, MP3 Книги or cMate?

MP3 Книги ships an update every 10 days, and cMate every 81 months. Most recently, MP3 Книги was updated on November 11, 2026 and cMate on November 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.*