# シンプル日記+ vs Koyomi

The clearest difference is in-app purchases: Koyomi at none against シンプル日記+'s 1. Koyomi also leads on update cadence (fortnightly vs every 6 months). シンプル日記+'s advantage is iOS requirement (18.2 vs 26.2). On price, ads and device support there is nothing between them.

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

シンプル日記+ ships an update every 6 months, Koyomi fortnightly. Both last shipped on October 10, 2026.

## The numbers

| Metric | シンプル日記+ | Koyomi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 3 MB | 6 MB |
| Requires iOS | **18.2** | 26.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [taiyo maeno](https://appshunter.io/developer/1798445619) | [Ryoma Yanagimoto](https://appshunter.io/developer/1681944215) |

## What reviewers say

### シンプル日記+

[App page](https://appshunter.io/ios/app/plus/id6743049660)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $0.99 | one-time |


### Koyomi

[App page](https://appshunter.io/ios/app/koyomi-diary-with-future/id6758949469)

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

**In-app purchases:** none


## Frequently asked questions

### Is シンプル日記+ free?

シンプル日記+ is free to download, with in-app purchases available.

### Is Koyomi free?

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

### Do シンプル日記+ or Koyomi have ads?

Neither シンプル日記+ nor Koyomi shows ads.

### Which is updated more often, シンプル日記+ or Koyomi?

シンプル日記+ ships an update every 6 months, and Koyomi fortnightly. Most recently, シンプル日記+ was updated on October 10, 2026 and Koyomi on October 10, 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.*