# シンプル日記 vs Fast Diary

The clearest difference is in-app purchases: シンプル日記 at none against Fast Diary's 1. シンプル日記 also leads on ads (none vs shown) and update cadence (every 8 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Fast Diary sells 1 one-off in-app purchase. シンプル日記 asks for nothing beyond the download.

シンプル日記 ships an update every 8 days, Fast Diary every 3 months. Both last shipped on September 27, 2026.

## The numbers

| Metric | シンプル日記 | Fast Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 3 months |
| Size | 36 MB | 89 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takashi Tomoto](https://appshunter.io/developer/1367155936) | [Haruya Nakamura](https://appshunter.io/developer/1482524589) |

## What reviewers say

### シンプル日記

[App page](https://appshunter.io/ios/app/id1435001007)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fast Diary

[App page](https://appshunter.io/ios/app/fast-diary/id1502008283)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad hiding option | $0.99 | one-time |


## Frequently asked questions

### Is シンプル日記 free?

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

### Is Fast Diary free?

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

### Do シンプル日記 or Fast Diary have ads?

Fast Diary shows ads; シンプル日記 does not.

### Which is updated more often, シンプル日記 or Fast Diary?

シンプル日記 ships an update every 8 days, and Fast Diary every 3 months. Most recently, シンプル日記 was updated on September 27, 2026 and Fast Diary on September 27, 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.*