# 知書Nowbook vs mooSound 犢出聲

The clearest difference is review sentiment: mooSound 犢出聲 at 100% against 知書Nowbook's 50%. mooSound 犢出聲 also leads on in-app purchases (none vs 8) and rating (4.8 vs 4.5). 知書Nowbook's advantage is iOS requirement (11.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 知書Nowbook sells 8 one-off in-app purchases. mooSound 犢出聲 asks for nothing beyond the download.

mooSound 犢出聲 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: mooSound 犢出聲 has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of 知書Nowbook's written reviews are positive against 100% of mooSound 犢出聲's.

知書Nowbook ships an update every 2 months, mooSound 犢出聲 monthly. The most recent releases landed on July 16, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | 知書Nowbook | mooSound 犢出聲 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/nowbook/id1446373183/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/moosound/id1630868483/reviews)** |
| Number of ratings | 2 | **16** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 45 MB | 82 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Sino United Electronic Publishing Limited](https://appshunter.io/developer/660144353) | [eCrowdmedia](https://appshunter.io/developer/942389747) |

## What reviewers say

### 知書Nowbook

[App page](https://appshunter.io/ios/app/nowbook/id1446373183)

This platform offers a comprehensive reading experience, combining e-books, audiobooks, courses, and video content. It features a vast collection of Chinese literature and aims to be a leading Cantonese audiobook resource.

**Highlights:** Extensive e-book library, Cantonese audiobook collection, Multimedia courses, Author interviews and video content, Daily content updates, Hong Kong and international Chinese literature

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8知書幣 | $0.99 | one-time |
| 38知書幣 | $4.99 | one-time |
| 58知書幣 | $7.99 | one-time |
| 80知書幣 | $9.99 | one-time |
| 193知書幣 | $23.99 | one-time |
| 248知書幣 | $24.99 | one-time |
| 298知書幣 | $36.99 | one-time |
| 403知書幣 | $48.99 | one-time |


### mooSound 犢出聲

[App page](https://appshunter.io/ios/app/moosound/id1630868483)

Listen to audiobooks hands-free and utilize your spare time. This app offers customizable playback options like speed, skip intervals, and download settings. It also includes bookmarking and a driving mode with large buttons.

**Highlights:** On-demand playback, Customizable download settings, Adjustable playback speed, Customizable skip intervals, Bookmark functionality, Driving mode with large buttons

**Features:** Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is 知書Nowbook free?

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

### Is mooSound 犢出聲 free?

mooSound 犢出聲 is free to download, with no in-app purchases.

### Which has better reviews, 知書Nowbook or mooSound 犢出聲?

mooSound 犢出聲 is rated higher. 知書Nowbook averages 4.5 out of 5 from 2 ratings, while mooSound 犢出聲 averages 4.8 from 16 ratings.

### Do 知書Nowbook or mooSound 犢出聲 have ads?

Neither 知書Nowbook nor mooSound 犢出聲 shows ads.

### Which is updated more often, 知書Nowbook or mooSound 犢出聲?

知書Nowbook ships an update every 2 months, and mooSound 犢出聲 monthly. Most recently, 知書Nowbook was updated on July 16, 2026 and mooSound 犢出聲 on August 12, 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.*