# シンプル日記+ vs IdeaKeeper

The clearest difference is in-app purchases: IdeaKeeper at none against シンプル日記+'s 1. IdeaKeeper also leads on update cadence (every 2 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

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

シンプル日記+ ships an update every 6 months, IdeaKeeper every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | シンプル日記+ | IdeaKeeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Size | 3 MB | 3 MB |
| Requires iOS | 18.2 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [taiyo maeno](https://appshunter.io/developer/1798445619) | [Shinichiro Eto](https://appshunter.io/developer/1864675097) |

## 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 |


### IdeaKeeper

[App page](https://appshunter.io/ios/app/ideakeeper-night-to-dawn/id6757116881)

**Features:** macOS Compatibility

**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 IdeaKeeper free?

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

### Do シンプル日記+ or IdeaKeeper have ads?

Neither シンプル日記+ nor IdeaKeeper shows ads.

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

シンプル日記+ ships an update every 6 months, and IdeaKeeper every 2 days. Most recently, シンプル日記+ was updated on October 30, 2026 and IdeaKeeper on October 31, 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.*