# Screw King Pin Master vs Square Dog

The clearest difference is in-app purchases: Square Dog at none against Screw King Pin Master's 6. Square Dog also leads on update cadence (every 3 days vs every 6 weeks). Screw King Pin Master's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Screw King Pin Master sells 6 one-off in-app purchases. Square Dog asks for nothing beyond the download.

Screw King Pin Master ships an update every 6 weeks, Square Dog every 3 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Screw King Pin Master | Square Dog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/screw-king-pin-master/id6753167189/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 151 MB | 60 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [7Seas Entertainment Limited](https://appshunter.io/developer/1630154597) | [Nicki Larsen](https://appshunter.io/developer/1812928848) |

## What reviewers say

### Screw King Pin Master

[App page](https://appshunter.io/ios/app/screw-king-pin-master/id6753167189)

Engage your logic and patience with this addictive puzzle game. Solve intricate screw-removal challenges and strategic block-clearing puzzles. Offers immersive 3D mechanics and offline play for endless brain-training fun.

**Highlights:** Two unique gameplay modes, Screw Matrix and Color Bolt Rush, Immersive 3D mechanics, Dozens of challenging levels, Offline play supported, Progressive difficulty

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Levels | $2.99 | one-time |
| Coin Pack | $2.99 | one-time |
| Starter Boost | $3.99 | one-time |
| No Ads | $4.99 | one-time |
| Mega Boost | $4.99 | one-time |
| Prime Boost | $5.99 | one-time |


### Square Dog

[App page](https://appshunter.io/ios/app/square-dog/id6816243766)

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

**In-app purchases:** none


## Frequently asked questions

### Is Screw King Pin Master free?

Screw King Pin Master is free to download, with in-app purchases available.

### Is Square Dog free?

Square Dog is free to download, with no in-app purchases.

### Do Screw King Pin Master or Square Dog have ads?

Both Screw King Pin Master and Square Dog show ads.

### Which is updated more often, Screw King Pin Master or Square Dog?

Screw King Pin Master ships an update every 6 weeks, and Square Dog every 3 days. Most recently, Screw King Pin Master was updated on October 30, 2026 and Square Dog on October 24, 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.*