# Wool Loop vs Stack Surge

The clearest difference is in-app purchases: Stack Surge at none against Wool Loop's 10. Stack Surge also leads on ads (none vs shown). Wool Loop's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. Wool Loop sells 10 one-off in-app purchases. Stack Surge asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Wool Loop | Stack Surge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/wool-loop-yarn-jam-shooter/id6759028270/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 228 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quinsor](https://appshunter.io/developer/6790716614) | [Ahmet Emre CAKMAK](https://appshunter.io/developer/1877092106) |

## What reviewers say

### Wool Loop

[App page](https://appshunter.io/ios/app/wool-loop-yarn-jam-shooter/id6759028270)

Engage in a calming puzzle game featuring charming pixel art. Tap spools to clear knitted parts of the same color, watching the picture disappear piece by piece. Enjoy simple controls for a relaxing escape anytime, anywhere.

**Highlights:** Satisfying color-sorting gameplay, Charming knitted pixel art, Intuitive tap controls, Calming and relaxing experience, Piece-by-piece picture clearing, Spool usage tracking

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Bundle | $1.99 | one-time |
| Coin Pack 1 | $1.99 | one-time |
| Revive Bundle | $2.99 | one-time |
| Coin Pack 2 | $7.99 | one-time |
| Superior Bundle | $9.99 | one-time |
| Large Bundle | $19.99 | one-time |
| Coin Pack 4 | $29.99 | one-time |
| Cat Bundle | $35.99 | one-time |
| Advanced Bundle | $49.99 | one-time |
| Coin Pack 5 | $99.99 | one-time |


### Stack Surge

[App page](https://appshunter.io/ios/app/stack-surge-block-tower/id6761648364)

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

**In-app purchases:** none


## Frequently asked questions

### Is Wool Loop free?

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

### Is Stack Surge free?

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

### Do Wool Loop or Stack Surge have ads?

Wool Loop shows ads; Stack Surge does not.

### Which is updated more often, Wool Loop or Stack Surge?

Wool Loop ships an update every 2 months, and Stack Surge every 2 months. Most recently, Wool Loop was updated on October 24, 2026 and Stack Surge on October 25, 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.*