# Аудиокниги и Книги Онлайн vs Number Brain

The clearest difference is iOS requirement: Аудиокниги и Книги Онлайн at 13.0 against Number Brain's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Аудиокниги и Книги Онлайн sells 8 in-app purchases, starting at $2.49 per 7 days and Number Brain sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Аудиокниги и Книги Онлайн ships an update monthly, Number Brain every 4 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Аудиокниги и Книги Онлайн | Number Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (427 ratings)](https://appshunter.io/ios/app/id431517703/reviews)** | — |
| Number of ratings | **427** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Subscription | — |
| Size | 13 MB | 53 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Daidzhest Media, OOO](https://appshunter.io/developer/1178549159) | [Gerard Grundy](https://appshunter.io/developer/714855075) |

## What reviewers say

### Аудиокниги и Книги Онлайн

[App page](https://appshunter.io/ios/app/id431517703)

Access a vast library of over 10,000 audiobooks across all genres and authors. Enjoy bestsellers, new releases, and classic literature with professional narration and a user-friendly player. Discover your next favorite story with ease.

**Highlights:** Over 10,000 audiobooks, All genres and authors, Bestsellers and new releases, User-friendly catalog, Multi-functional player, Professional narration, Regular library updates

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| АКЦИЯ! Полный доступ | $2.49 | per 7 days |
| Аудиокниги бесплатно | $3.49 | per 7 days |
| Аудиокниги без ограничений | $3.49 | per 7 days |
| Аудиокниги без ограничений | $5.99 | per month |
| Аудиокниги без ограничений | $6.99 | per month |
| Аудиокниги бесплатно | $13.99 | per month |
| Аудиокниги бесплатно | $25.99 | per 3 months |
| Аудиокниги бесплатно | $79.99 | per year |

**What reviewers like**

- 📚 Huge selection of books across multiple genres and languages
- 🎧 High-quality audiobook narration and voice acting
- 👍 User-friendly interface and intuitive navigation
- ⚡ Convenient way to consume content while multitasking
- 🔖 Automatic bookmarking feature to resume reading/listening

**What reviewers complain about**

- 💳 Misleading free trial that converts to paid subscription
- ❌ Difficult subscription cancellation process
- 🚫 Loss of access to purchased books upon subscription cancellation
- 📞 Poor customer service and unresponsive support team
- 🐛 App errors that prevent book playback without compensation

**Reported bugs**

- Books disappearing from library without explanation
- App errors preventing audiobook playback
- Subscription cancellation issues and inability to manage subscription in-app
- Unexpected charges continuing after cancellation attempts

**Requested features**

- Adjustable audiobook playback speed control
- Ability to create custom playlists for listened books
- Separate folder/organization for completed books
- Easier subscription management within the app settings
- Retention of book access after subscription cancellation


### Number Brain

[App page](https://appshunter.io/ios/app/number-brain/id1196440935)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Аудиокниги и Книги Онлайн free?

Аудиокниги и Книги Онлайн is free to download, with in-app purchases available.

### Is Number Brain free?

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

### Do Аудиокниги и Книги Онлайн or Number Brain have ads?

Both Аудиокниги и Книги Онлайн and Number Brain show ads.

### Which is updated more often, Аудиокниги и Книги Онлайн or Number Brain?

Аудиокниги и Книги Онлайн ships an update monthly, and Number Brain every 4 weeks. Most recently, Аудиокниги и Книги Онлайн was updated on November 6, 2026 and Number Brain on November 2, 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.*