# CollectBook vs Sofubi Journal

The clearest difference is in-app purchases: CollectBook at none against Sofubi Journal's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sofubi Journal sells 1 one-off in-app purchase. CollectBook asks for nothing beyond the download.

CollectBook ships an update every 5 days, Sofubi Journal every 4 days. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CollectBook | Sofubi Journal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 2 MB | 17 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [RIN OHUCHI](https://appshunter.io/developer/1883248501) | [tsubasa matsumoto](https://appshunter.io/developer/6786529946) |

## What reviewers say

### CollectBook

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

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

**In-app purchases:** none


### Sofubi Journal

[App page](https://appshunter.io/ios/app/sofubi-journal/id6795497288)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sofubi Journal Premium | $3.99 | one-time |


## Frequently asked questions

### Is CollectBook free?

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

### Is Sofubi Journal free?

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

### Do CollectBook or Sofubi Journal have ads?

Neither CollectBook nor Sofubi Journal shows ads.

### Which is updated more often, CollectBook or Sofubi Journal?

CollectBook ships an update every 5 days, and Sofubi Journal every 4 days. Most recently, CollectBook was updated on October 1, 2026 and Sofubi Journal on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*