# MomentNote vs Big Yellow Diary

The clearest difference is update cadence: Big Yellow Diary at every 6 days against MomentNote's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. MomentNote sells 1 in-app purchase, starting at $0.99 per month and Big Yellow Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MomentNote ships an update every 3 weeks, Big Yellow Diary every 6 days. Both last shipped on November 8, 2026.

## The numbers

| Metric | MomentNote | Big Yellow Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [子源 董](https://appshunter.io/developer/1701284151) | [山 黄](https://appshunter.io/developer/1679305097) |

## What reviewers say

### MomentNote

[App page](https://appshunter.io/ios/app/momentnote/id6737163227)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月订阅 | $0.99 | per month |


### Big Yellow Diary

[App page](https://appshunter.io/ios/app/big-yellow-diary/id6739752316)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus version | $1.99 | one-time |


## Frequently asked questions

### Is MomentNote free?

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

### Is Big Yellow Diary free?

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

### Do MomentNote or Big Yellow Diary have ads?

Neither MomentNote nor Big Yellow Diary shows ads.

### Which is updated more often, MomentNote or Big Yellow Diary?

MomentNote ships an update every 3 weeks, and Big Yellow Diary every 6 days. Most recently, MomentNote was updated on November 8, 2026 and Big Yellow Diary on November 8, 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.*