# Yondazo vs Passim｜蔵書管理・本棚整理・読書記録

The clearest difference is in-app purchases: Yondazo at none against Passim｜蔵書管理・本棚整理・読書記録's 2. Yondazo also leads on ads (none vs shown). Passim｜蔵書管理・本棚整理・読書記録's advantage is update cadence (every 3 weeks vs every 6 months) and iOS requirement (16.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Passim｜蔵書管理・本棚整理・読書記録 sells 2 in-app purchases, starting at $4.99 per month. Yondazo asks for nothing beyond the download.

Yondazo ships an update every 6 months, Passim｜蔵書管理・本棚整理・読書記録 every 3 weeks. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Yondazo | Passim｜蔵書管理・本棚整理・読書記録 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/yondazo-reading-tracker/id1547099179/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 73 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [arakawa yuichiro](https://appshunter.io/developer/421879127) | [MODALAVA](https://appshunter.io/developer/1891578566) |

## What reviewers say

### Yondazo

[App page](https://appshunter.io/ios/app/yondazo-reading-tracker/id1547099179)

Track your reading progress with detailed charts and insights. Log books, add notes, and visualize your reading journey over time. Offers on-device AI analysis for private habit discovery.

**Highlights:** Monthly, yearly, and all-time reading charts, On-device AI reading habit analysis, Book notes, ratings, and genre tagging, Visual bookshelf with cover grid or list view, Barcode scanning for quick book entry, Data backup and transfer

**Features:** macOS Compatibility

**In-app purchases:** none


### Passim｜蔵書管理・本棚整理・読書記録

[App page](https://appshunter.io/ios/app/passim/id6761805831)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Passim Pro Monthly | $4.99 | per month |
| Passim Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Yondazo free?

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

### Is Passim｜蔵書管理・本棚整理・読書記録 free?

Passim｜蔵書管理・本棚整理・読書記録 is free to download, with in-app purchases available.

### Do Yondazo or Passim｜蔵書管理・本棚整理・読書記録 have ads?

Passim｜蔵書管理・本棚整理・読書記録 shows ads; Yondazo does not.

### Which is updated more often, Yondazo or Passim｜蔵書管理・本棚整理・読書記録?

Yondazo ships an update every 6 months, and Passim｜蔵書管理・本棚整理・読書記録 every 3 weeks. Most recently, Yondazo was updated on October 9, 2026 and Passim｜蔵書管理・本棚整理・読書記録 on October 1, 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.*