# Wool Balls Puzzle vs Stack Serve

The clearest difference is in-app purchases: Stack Serve at none against Wool Balls Puzzle's 7. Stack Serve also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Wool Balls Puzzle sells 7 one-off in-app purchases. Stack Serve asks for nothing beyond the download.

## The numbers

| Metric | Wool Balls Puzzle | Stack Serve |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | — |
| Size | 179 MB | 210 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [VOYAGER OYUN YAZILIM SANAYİ TİCARET ANONİM ŞİRKETİ](https://appshunter.io/developer/1704639052) | [tiplay studio Oyun ve Teknoloji Anonim Sirketi](https://appshunter.io/developer/1615757652) |

## What reviewers say

### Wool Balls Puzzle

[App page](https://appshunter.io/ios/app/wool-balls-puzzle/id6749367503)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin 1000 | $1.99 | one-time |
| No Ads | $3.99 | one-time |
| Coin 5000 | $7.99 | one-time |
| Coin 10000 | $14.99 | one-time |
| Coin 25000 | $29.99 | one-time |
| Coin 50000 | $54.99 | one-time |
| Coin 100000 | $99.99 | one-time |


### Stack Serve

[App page](https://appshunter.io/ios/app/stack-serve/id6751804655)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wool Balls Puzzle free?

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

### Is Stack Serve free?

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

### Do Wool Balls Puzzle or Stack Serve have ads?

Both Wool Balls Puzzle and Stack Serve show ads.

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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.*