# Scratch Image vs Wooly Stack

The clearest difference is ads: Scratch Image at none against Wooly Stack's shown. Scratch Image also leads on update cadence (daily vs every 2 days). Wooly Stack's advantage is iOS requirement (13.0 vs 16.6). On price, 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.

Scratch Image ships an update daily, Wooly Stack every 2 days. The most recent releases landed on October 16, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Scratch Image | Wooly Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 2 days |
| Size | 4 MB | 112 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Francesco Abbondo](https://appshunter.io/developer/882842549) | [Ngoc Thien Tran](https://appshunter.io/developer/1832974460) |

## What reviewers say

### Scratch Image

[App page](https://appshunter.io/ios/app/scratch-image/id6748886103)

**Features:** macOS Compatibility

**In-app purchases:** none


### Wooly Stack

[App page](https://appshunter.io/ios/app/wooly-stack/id6754236109)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scratch Image free?

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

### Is Wooly Stack free?

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

### Do Scratch Image or Wooly Stack have ads?

Wooly Stack shows ads; Scratch Image does not.

### Which is updated more often, Scratch Image or Wooly Stack?

Scratch Image ships an update daily, and Wooly Stack every 2 days. Most recently, Scratch Image was updated on October 16, 2026 and Wooly Stack on September 28, 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.*