# Fast Diary vs あとやる

The clearest difference is in-app purchases: あとやる at none against Fast Diary's 1. あとやる also leads on update cadence (every 6 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fast Diary sells 1 one-off in-app purchase. あとやる asks for nothing beyond the download.

Fast Diary ships an update every 3 months, あとやる every 6 days. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Fast Diary | あとやる |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 6 days** |
| Size | 89 MB | 13 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Haruya Nakamura](https://appshunter.io/developer/1482524589) | [yuto yamauchi](https://appshunter.io/developer/1500236114) |

## 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 |


### あとやる

[App page](https://appshunter.io/ios/app/id1668515697)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fast Diary free?

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

### Is あとやる free?

あとやる is free to download, with no in-app purchases.

### Do Fast Diary or あとやる have ads?

Both Fast Diary and あとやる show ads.

### Which is updated more often, Fast Diary or あとやる?

Fast Diary ships an update every 3 months, and あとやる every 6 days. Most recently, Fast Diary was updated on October 13, 2026 and あとやる 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.*