# CollectBook vs 作品ログ

The clearest difference is update cadence: 作品ログ at every 5 days against CollectBook's every 4 months. 作品ログ also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CollectBook ships an update every 4 months, 作品ログ every 5 days. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | CollectBook | 作品ログ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 2 MB | 38 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RIN OHUCHI](https://appshunter.io/developer/1883248501) | [Katsuhide Leung](https://appshunter.io/developer/6775420732) |

## What reviewers say

### CollectBook

[App page](https://appshunter.io/ios/app/collectbook/id6760471926)

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

**In-app purchases:** none


### 作品ログ

[App page](https://appshunter.io/ios/app/id6809163721)

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

**In-app purchases:** none


## Frequently asked questions

### Is CollectBook free?

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

### Is 作品ログ free?

作品ログ is free to download, with no in-app purchases.

### Do CollectBook or 作品ログ have ads?

Neither CollectBook nor 作品ログ shows ads.

### Which is updated more often, CollectBook or 作品ログ?

CollectBook ships an update every 4 months, and 作品ログ every 5 days. Most recently, CollectBook was updated on October 31, 2026 and 作品ログ on October 26, 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.*