# 蔵書管理 vs BookCompass

The clearest difference is ads: BookCompass at none against 蔵書管理's shown. BookCompass also leads on update cadence (every 8 days vs every 3 months). 蔵書管理's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. 蔵書管理 sells 1 one-off in-app purchase and BookCompass sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

蔵書管理 ships an update every 3 months, BookCompass every 8 days. The most recent releases landed on November 9, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | 蔵書管理 | BookCompass |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | — | Freemium |
| Size | 38 MB | 82 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [naoto higashiya](https://appshunter.io/developer/1859691605) | [naoki shiomichi](https://appshunter.io/developer/1879387430) |

## 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 |


### BookCompass

[App page](https://appshunter.io/ios/app/bookcompass/id6760604663)

This app helps you retain what you read by allowing you to jot down quick thoughts as you go. It transforms your notes into a personal reading journal, offering insights into your reading habits and thought processes. Discover connections between books and receive personalized recommendations.

**Highlights:** Scan or search to register books, Record short thoughts while reading, Personalized reading journal creation, Visualize reading habits with charts, Discover connections between books, AI-powered reading insights, Personalized book recommendations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compass Pro | $4.99 | per month |
| Compass Pro Yearly | $34.99 | per year |


## Frequently asked questions

### Is 蔵書管理 free?

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

### Is BookCompass free?

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

### Do 蔵書管理 or BookCompass have ads?

蔵書管理 shows ads; BookCompass does not.

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

蔵書管理 ships an update every 3 months, and BookCompass every 8 days. Most recently, 蔵書管理 was updated on November 9, 2026 and BookCompass on November 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.*