# mooSound 犢出聲 vs Bookshelf Diary

The clearest difference is in-app purchases: mooSound 犢出聲 at none against Bookshelf Diary's 1. mooSound 犢出聲 also leads on ratings volume (16 vs 1). Bookshelf Diary's advantage is update cadence (every 9 days vs monthly) and rating (5.0 vs 4.8). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. Bookshelf Diary sells 1 one-off in-app purchase. mooSound 犢出聲 asks for nothing beyond the download.

Bookshelf Diary holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: mooSound 犢出聲 has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

mooSound 犢出聲 ships an update monthly, Bookshelf Diary every 9 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | mooSound 犢出聲 | Bookshelf Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (16 ratings)](https://appshunter.io/ios/app/moosound/id1630868483/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bookshelf-diary/id6758018882/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free | Free |
| Size | 81 MB | 135 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [eCrowdmedia](https://appshunter.io/developer/942389747) | [WANG MEI TING](https://appshunter.io/developer/1870321612) |

## What reviewers say

### 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


### Bookshelf Diary

[App page](https://appshunter.io/ios/app/bookshelf-diary/id6758018882)

Organize your book collection with ease using barcode scanning, batch entry for series, and progress tracking. Manage wishlists, customize shelf arrangements, and back up your data locally or via the cloud. Supports offline use and offers a dark mode.

**Highlights:** ISBN barcode scanning, Batch entry for series, Track owned and missing books, Wishlist management, Customizable shelf sorting, Excel export/import, Cloud backup, Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus 永久版 | $7.99 | one-time |


## Frequently asked questions

### Is mooSound 犢出聲 free?

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

### Is Bookshelf Diary free?

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

### Which has better reviews, mooSound 犢出聲 or Bookshelf Diary?

Bookshelf Diary is rated higher. mooSound 犢出聲 averages 4.8 out of 5 from 16 ratings, while Bookshelf Diary averages 5.0 from 1 ratings.

### Do mooSound 犢出聲 or Bookshelf Diary have ads?

Neither mooSound 犢出聲 nor Bookshelf Diary shows ads.

### Which is updated more often, mooSound 犢出聲 or Bookshelf Diary?

mooSound 犢出聲 ships an update monthly, and Bookshelf Diary every 9 days. Most recently, mooSound 犢出聲 was updated on October 14, 2026 and Bookshelf Diary on October 13, 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.*