# OneDiary vs 易行

The clearest difference is in-app purchases: 易行 at none against OneDiary's 4. 易行 also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OneDiary sells 4 in-app purchases, starting at $0.99 per month. 易行 asks for nothing beyond the download.

OneDiary ships an update monthly, 易行 every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OneDiary | 易行 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 242 MB | 34 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [OneDiary (Dongguan) Technology Co., Ltd](https://appshunter.io/developer/1609976911) | [洋贝 赵](https://appshunter.io/developer/1878243877) |

## What reviewers say

### OneDiary

[App page](https://appshunter.io/ios/app/onediary-journal-and-note/id1610312891)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OneDiary Pro Monthly | $0.99 | per month |
| Pro Member Yearly | $9.99 | per year |
| One month of OneDiary Pro | $0.99 | one-time |
| OneDiary Pro Permanently | $29.99 | one-time |


### 易行

[App page](https://appshunter.io/ios/app/id6794582182)

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

**In-app purchases:** none


## Frequently asked questions

### Is OneDiary free?

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

### Is 易行 free?

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

### Do OneDiary or 易行 have ads?

Neither OneDiary nor 易行 shows ads.

### Which is updated more often, OneDiary or 易行?

OneDiary ships an update monthly, and 易行 every 2 weeks. Most recently, OneDiary was updated on October 30, 2026 and 易行 on October 24, 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.*