# 蔵書管理 vs Libri 読書管理

The clearest difference is in-app purchases: Libri 読書管理 at none against 蔵書管理's 1. Libri 読書管理 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). 蔵書管理's advantage is iOS requirement (15.1 vs 26.0). On price and device support there is nothing between them.

Both are free to download. 蔵書管理 sells 1 one-off in-app purchase. Libri 読書管理 asks for nothing beyond the download.

蔵書管理 ships an update every 3 months, Libri 読書管理 every 3 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 蔵書管理 | Libri 読書管理 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 38 MB | 75 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [naoto higashiya](https://appshunter.io/developer/1859691605) | [BasaApp Technologies](https://appshunter.io/developer/1712971435) |

## What reviewers say

### 蔵書管理

[App page](https://appshunter.io/ios/app/isbn/id6756271812)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | one-time |


### Libri 読書管理

[App page](https://appshunter.io/ios/app/libri/id6756832379)

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

**In-app purchases:** none


## Frequently asked questions

### Is 蔵書管理 free?

蔵書管理 is free to download, with in-app purchases available.

### Is Libri 読書管理 free?

Libri 読書管理 is free to download, with no in-app purchases.

### Do 蔵書管理 or Libri 読書管理 have ads?

蔵書管理 shows ads; Libri 読書管理 does not.

### Which is updated more often, 蔵書管理 or Libri 読書管理?

蔵書管理 ships an update every 3 months, and Libri 読書管理 every 3 weeks. Most recently, 蔵書管理 was updated on November 9, 2026 and Libri 読書管理 on November 5, 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.*