# Screw Master vs Memory Squares

The clearest difference is in-app purchases: Screw Master at none against Memory Squares's 1. Screw Master also leads on iOS requirement (13.0 vs 15.0). Memory Squares's advantage is update cadence (every 4 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Memory Squares sells 1 one-off in-app purchase. Screw Master asks for nothing beyond the download.

Screw Master ships an update every 3 months, Memory Squares every 4 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Screw Master | Memory Squares |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (184 ratings)](https://appshunter.io/ios/app/screw-master-brain-battle/id6473667296/reviews)** | — |
| Number of ratings | **184** | — |
| Positive reviews | 3.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 231 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [龙斌 陈](https://appshunter.io/developer/1665492276) | [Leila Silveira Ferreira](https://appshunter.io/developer/6778101104) |

## What reviewers say

### Screw Master

[App page](https://appshunter.io/ios/app/screw-master-brain-battle/id6473667296)

Engage in a challenging screw-tightening competition. Rearrange screws in spare holes to make iron plates fall off. Each level requires strategic thinking and observation to find the optimal solution within limited steps.

**Highlights:** Screw tightening competition, Rearrange screws to detach iron plates, Varied level layouts and screw positions, Limited steps per level, Develop problem-solving skills, Enhance spatial imagination

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Good game
- 🚀 Quick gameplay

**What reviewers complain about**

- 🐛 Freezes the screen
- 🐛 Blocks other games
- 🐛 Impossible to exit
- 🤬 Extremely annoying ads
- 🤯 Disrupts gameplay

**Reported bugs**

- Ad gets stuck and won't go away
- Freezes the screen, preventing return to original game
- Ads block access to the game being played

**Requested features**

- Fix the ad issue
- Allow users to exit the app easily
- Improve compatibility with other games


### Memory Squares

[App page](https://appshunter.io/ios/app/memory-squares-brain-game/id6794945104)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Screw Master free?

Screw Master is free to download, with no in-app purchases.

### Is Memory Squares free?

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

### Do Screw Master or Memory Squares have ads?

Both Screw Master and Memory Squares show ads.

### Which is updated more often, Screw Master or Memory Squares?

Screw Master ships an update every 3 months, and Memory Squares every 4 days. Most recently, Screw Master was updated on October 22, 2026 and Memory Squares 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.*