# 帝國圖書館 vs VOOX 新しいオーディオブックサービス(ブックス)

The clearest difference is in-app purchases: 帝國圖書館 at none against VOOX 新しいオーディオブックサービス(ブックス)'s 1. 帝國圖書館 also leads on iOS requirement (12.0 vs 15.6). VOOX 新しいオーディオブックサービス(ブックス)'s advantage is update cadence (every 3 weeks vs every 7 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. VOOX 新しいオーディオブックサービス(ブックス) sells 1 in-app purchase, starting at $8.99 per month. 帝國圖書館 asks for nothing beyond the download.

帝國圖書館 ships an update every 7 months, VOOX 新しいオーディオブックサービス(ブックス) every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 帝國圖書館 | VOOX 新しいオーディオブックサービス(ブックス) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/voox/id1546175303/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 72.2% of reviews | **77.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 11 MB | 107 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Shin-ichi Nishimura](https://appshunter.io/developer/404706178) | [Moon Creative Lab](https://appshunter.io/developer/1536047405) |

## What reviewers say

### 帝國圖書館

[App page](https://appshunter.io/ios/app/id963604056)

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

**In-app purchases:** none


### VOOX 新しいオーディオブックサービス(ブックス)

[App page](https://appshunter.io/ios/app/voox/id1546175303)

This service delivers the essence of best-selling books and business books through audio, narrated by the authors themselves. Each episode is 10 minutes long, with a total of 6 episodes per book, making it perfect for learning during short breaks.

**Highlights:** Author-narrated content, 10-minute episodes, 6 episodes per book, Curated content lineup, Exclusive content, Concise knowledge delivery

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VOOXプレミアム | $8.99 | per month |


## Frequently asked questions

### Is 帝國圖書館 free?

帝國圖書館 is free to download, with no in-app purchases.

### Is VOOX 新しいオーディオブックサービス(ブックス) free?

VOOX 新しいオーディオブックサービス(ブックス) is free to download, with in-app purchases available.

### Do 帝國圖書館 or VOOX 新しいオーディオブックサービス(ブックス) have ads?

Neither 帝國圖書館 nor VOOX 新しいオーディオブックサービス(ブックス) shows ads.

### Which is updated more often, 帝國圖書館 or VOOX 新しいオーディオブックサービス(ブックス)?

帝國圖書館 ships an update every 7 months, and VOOX 新しいオーディオブックサービス(ブックス) every 3 weeks. Most recently, 帝國圖書館 was updated on October 24, 2026 and VOOX 新しいオーディオブックサービス(ブックス) on October 25, 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.*