# MiiBook Journal vs シンプル3行日記

The clearest difference is in-app purchases: シンプル3行日記 at none against MiiBook Journal's 3. シンプル3行日記 also leads on update cadence (every 3 days vs monthly). MiiBook Journal's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. MiiBook Journal sells 3 in-app purchases, starting at $1.99 per month. シンプル3行日記 asks for nothing beyond the download.

MiiBook Journal ships an update monthly, シンプル3行日記 every 3 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | MiiBook Journal | シンプル3行日記 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/miibook-journal-private-diary/id6451179720/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 153 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryunosuke Nagase](https://appshunter.io/developer/1506451599) | [Searial, Inc.](https://appshunter.io/developer/1875914396) |

## What reviewers say

### MiiBook Journal

[App page](https://appshunter.io/ios/app/miibook-journal-private-diary/id6451179720)

This personal diary app offers a clean and engaging interface for easy daily journaling. It allows for quick entries, calendar reflections, and automatic monthly summaries. Prioritizing privacy, all data is stored locally on your device.

**Highlights:** Instant entry upon opening, Calendar reflections, AI monthly summaries, Dark mode support, Reminder notifications, Home Widget, Local data storage

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM - MONTHLY | $1.99 | per month |
| PREMIUM - ANNUAL | $22.99 | per year |
| PREMIUM - LIFETIME | $49.99 | one-time |


### シンプル3行日記

[App page](https://appshunter.io/ios/app/3/id6791351877)

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

**In-app purchases:** none


## Frequently asked questions

### Is MiiBook Journal free?

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

### Is シンプル3行日記 free?

シンプル3行日記 is free to download, with no in-app purchases.

### Do MiiBook Journal or シンプル3行日記 have ads?

Both MiiBook Journal and シンプル3行日記 show ads.

### Which is updated more often, MiiBook Journal or シンプル3行日記?

MiiBook Journal ships an update monthly, and シンプル3行日記 every 3 days. Most recently, MiiBook Journal was updated on October 24, 2026 and シンプル3行日記 on October 20, 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.*