# InfoGen vs 蔵書管理

The clearest difference is in-app purchases: InfoGen at none against 蔵書管理's 1. InfoGen also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

InfoGen ships an update every 3 weeks, 蔵書管理 every 2 months. The most recent releases landed on September 1, 2026 and June 12, 2026 respectively.

## The numbers

| Metric | InfoGen | 蔵書管理 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 17 MB | 35 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Takashi Shikone](https://appshunter.io/developer/1478258046) | [naoto higashiya](https://appshunter.io/developer/1859691605) |

## What reviewers say

### InfoGen

[App page](https://appshunter.io/ios/app/infogen-multi-functional-app/id1553210921)

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

**In-app purchases:** none


### 蔵書管理

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

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is InfoGen free?

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

### Is 蔵書管理 free?

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

### Do InfoGen or 蔵書管理 have ads?

Both InfoGen and 蔵書管理 show ads.

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

InfoGen ships an update every 3 weeks, and 蔵書管理 every 2 months. Most recently, InfoGen was updated on September 1, 2026 and 蔵書管理 on June 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.*