# Fast Diary vs Islands：インターネットの海に浮かぶ、やすらぎの空間

The clearest difference is ads: Islands：インターネットの海に浮かぶ、やすらぎの空間 at none against Fast Diary's shown. Islands：インターネットの海に浮かぶ、やすらぎの空間 also leads on update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Fast Diary sells 1 one-off in-app purchase and Islands：インターネットの海に浮かぶ、やすらぎの空間 sells 5 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Fast Diary ships an update every 3 months, Islands：インターネットの海に浮かぶ、やすらぎの空間 every 2 weeks. The most recent releases landed on September 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Fast Diary | Islands：インターネットの海に浮かぶ、やすらぎの空間 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 89 MB | 70 MB |
| Requires iOS | 16.4 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Haruya Nakamura](https://appshunter.io/developer/1482524589) | [Islands K.K.](https://appshunter.io/developer/1774416041) |

## What reviewers say

### 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 |


### Islands：インターネットの海に浮かぶ、やすらぎの空間

[App page](https://appshunter.io/ios/app/islands/id6467104704)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プラス | $7.99 | per month |
| プラス | $79.99 | per year |
| Star - 10000 | $0.69 | one-time |
| Star - 30000 | $1.79 | one-time |
| Star - 70000 | $3.79 | one-time |


## Frequently asked questions

### Is Fast Diary free?

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

### Is Islands：インターネットの海に浮かぶ、やすらぎの空間 free?

Islands：インターネットの海に浮かぶ、やすらぎの空間 is free to download, with in-app purchases available.

### Do Fast Diary or Islands：インターネットの海に浮かぶ、やすらぎの空間 have ads?

Fast Diary shows ads; Islands：インターネットの海に浮かぶ、やすらぎの空間 does not.

### Which is updated more often, Fast Diary or Islands：インターネットの海に浮かぶ、やすらぎの空間?

Fast Diary ships an update every 3 months, and Islands：インターネットの海に浮かぶ、やすらぎの空間 every 2 weeks. Most recently, Fast Diary was updated on September 27, 2026 and Islands：インターネットの海に浮かぶ、やすらぎの空間 on October 12, 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.*