# Simple Scribble vs FerroFluid

The clearest difference is in-app purchases: Simple Scribble at none against FerroFluid's 1. Simple Scribble also leads on iOS requirement (14.3 vs 17.0). FerroFluid's advantage is update cadence (every 2 months vs every 43 months). On price, ads and device support there is nothing between them.

Both are free to download. FerroFluid sells 1 one-off in-app purchase. Simple Scribble asks for nothing beyond the download.

Simple Scribble ships an update every 43 months, FerroFluid every 2 months. The most recent releases landed on October 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Simple Scribble | FerroFluid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 2 months** |
| Size | 1 MB | 14 MB |
| Requires iOS | **14.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [samscheller.com](https://appshunter.io/developer/453114527) | [DAISUKE UEDA](https://appshunter.io/developer/6791084264) |

## What reviewers say

### Simple Scribble

[App page](https://appshunter.io/ios/app/simple-scribble/id815903587)

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

**In-app purchases:** none


### FerroFluid

[App page](https://appshunter.io/ios/app/ferrofluid-magnetic-asmr/id6791084262)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FerroFluid Pro | $3.99 | one-time |


## Frequently asked questions

### Is Simple Scribble free?

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

### Is FerroFluid free?

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

### Do Simple Scribble or FerroFluid have ads?

Neither Simple Scribble nor FerroFluid shows ads.

### Which is updated more often, Simple Scribble or FerroFluid?

Simple Scribble ships an update every 43 months, and FerroFluid every 2 months. Most recently, Simple Scribble was updated on October 26, 2026 and FerroFluid on October 4, 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.*