# Sadn | سَدن vs Yellow Notebook

The clearest difference is update cadence: Sadn | سَدن at every 3 weeks against Yellow Notebook's every 6 weeks. Yellow Notebook's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sadn | سَدن ships an update every 3 weeks, Yellow Notebook every 6 weeks. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Sadn | سَدن | Yellow Notebook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 60 MB | 41 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed Dawoud](https://appshunter.io/developer/1657144181) | [Tamauze For Digital Solutions](https://appshunter.io/developer/1568070593) |

## What reviewers say

### Sadn | سَدن

[App page](https://appshunter.io/ios/app/sadn/id6746359337)

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

**In-app purchases:** none


### Yellow Notebook

[App page](https://appshunter.io/ios/app/yellow-notebook/id6757204228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sadn | سَدن free?

Sadn | سَدن is free to download, with no in-app purchases.

### Is Yellow Notebook free?

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

### Do Sadn | سَدن or Yellow Notebook have ads?

Neither Sadn | سَدن nor Yellow Notebook shows ads.

### Which is updated more often, Sadn | سَدن or Yellow Notebook?

Sadn | سَدن ships an update every 3 weeks, and Yellow Notebook every 6 weeks. Most recently, Sadn | سَدن was updated on October 9, 2026 and Yellow Notebook on October 11, 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.*