# 青空EPUB vs ブックデッキ

The clearest difference is in-app purchases: 青空EPUB at none against ブックデッキ's 3. 青空EPUB also leads on ads (none vs shown) and update cadence (daily vs every 11 days). On price and device support there is nothing between them.

Both are free to download. ブックデッキ sells 3 in-app purchases, starting at $0.99 per month. 青空EPUB asks for nothing beyond the download.

青空EPUB ships an update daily, ブックデッキ every 11 days. The most recent releases landed on October 16, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 青空EPUB | ブックデッキ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 11 days |
| Size | 21 MB | 41 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tsutomu Kondo](https://appshunter.io/developer/6807793626) | [Takahiro Kimura](https://appshunter.io/developer/6775796488) |

## What reviewers say

### 青空EPUB

[App page](https://appshunter.io/ios/app/epub/id6807793624)

**Features:** macOS Compatibility

**In-app purchases:** none


### ブックデッキ

[App page](https://appshunter.io/ios/app/id6811623217)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム（月額） | $0.99 | per month |
| プレミアム（年額） | $11.99 | per year |
| プレミアム（買い切り） | $39.99 | one-time |


## Frequently asked questions

### Is 青空EPUB free?

青空EPUB is free to download, with no in-app purchases.

### Is ブックデッキ free?

ブックデッキ is free to download, with in-app purchases available.

### Do 青空EPUB or ブックデッキ have ads?

ブックデッキ shows ads; 青空EPUB does not.

### Which is updated more often, 青空EPUB or ブックデッキ?

青空EPUB ships an update daily, and ブックデッキ every 11 days. Most recently, 青空EPUB was updated on October 16, 2026 and ブックデッキ on October 29, 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.*