# OneDay vs Diary Notes

The clearest difference is update cadence: Diary Notes at every 4 days against OneDay's every 4 weeks. OneDay's advantage is iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OneDay sells 3 in-app purchases, starting at $0.99 per month and Diary Notes sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

OneDay ships an update every 4 weeks, Diary Notes every 4 days. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | OneDay | Diary Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (95 ratings)](https://appshunter.io/ios/app/oneday-diary-journal/id1578156802/reviews)** | — |
| Number of ratings | **95** | — |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | Subscription | — |
| Size | 28 MB | 171 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [秋宏 陈](https://appshunter.io/developer/1553616514) | [tadahiro mori](https://appshunter.io/developer/1541301326) |

## What reviewers say

### OneDay

[App page](https://appshunter.io/ios/app/oneday-diary-journal/id1578156802)

This app provides a private space to record daily thoughts, emotions, and life events. It offers a beautiful interface with customizable themes and fonts, allowing you to enrich entries with photos and organize them with labels. Securely back up and sync your journal across devices.

**Highlights:** Simple and beautiful design, Add photos inline, Colorful themes and fonts, iCloud synchronization and backup, Search diary by label, One-click sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diary Journal - 1 Mouth | $0.99 | per month |
| Diary Journal - 6 Mouths | $2.49 | per 6 months |
| Diary Journal - 1 Year | $4.49 | per year |


### Diary Notes

[App page](https://appshunter.io/ios/app/diary-notes-handwritten/id6479974763)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $0.99 | per month |


## Frequently asked questions

### Is OneDay free?

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

### Is Diary Notes free?

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

### Do OneDay or Diary Notes have ads?

Neither OneDay nor Diary Notes shows ads.

### Which is updated more often, OneDay or Diary Notes?

OneDay ships an update every 4 weeks, and Diary Notes every 4 days. Most recently, OneDay was updated on October 20, 2026 and Diary Notes on October 9, 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.*