# Concentration vs Screw Crush

The clearest difference is price: Screw Crush at Free against Concentration's $0.99. Concentration's advantage is rating (4.0 vs 1.0) and in-app purchases (none vs 3). On ratings volume, update cadence, device support and iOS requirement there is nothing between them.

Screw Crush is free to download; Concentration costs $0.99 up front. Screw Crush sells 3 one-off in-app purchases. Concentration asks for nothing beyond the download.

Concentration holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Concentration ships an update every 8 days, Screw Crush weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Concentration | Screw Crush |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/concentration-card-game/id1462017368/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/screw-crush/id6751176669/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 128 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ankit Shah](https://appshunter.io/developer/1462017367) | [WindGames Limited](https://appshunter.io/developer/1809090818) |

## What reviewers say

### Concentration

[App page](https://appshunter.io/ios/app/concentration-card-game/id1462017368)

A classic memory matching card game where players flip cards to find pairs. It's suitable for all ages, offering a fun challenge for both children and adults to test their recall.

**Highlights:** Card matching gameplay, Memory testing, Solitaire or multiplayer, Challenging for adults, Good for children

**Features:** macOS Compatibility

**In-app purchases:** none


### Screw Crush

[App page](https://appshunter.io/ios/app/screw-crush/id6751176669)

Engage in a fun, screw-themed puzzle experience with unique levels. Discover diverse scenarios and enjoy a variety of elimination challenges. Get started today to explore different joys.

**Highlights:** Screw-themed gameplay, Unique and distinctive scenes, Variety of elimination joys, Puzzle challenges, Fun and engaging experience

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads Items | $2.99 | one-time |
| Remove Ads Perk | $7.99 | one-time |
| Remove Ads Bundle | $9.99 | one-time |


## Frequently asked questions

### Is Concentration free?

Concentration costs $0.99, with no in-app purchases.

### Is Screw Crush free?

Screw Crush is free to download, with in-app purchases available.

### Which has better reviews, Concentration or Screw Crush?

Concentration is rated higher. Concentration averages 4.0 out of 5 from 1 ratings, while Screw Crush averages 1.0 from 1 ratings.

### Do Concentration or Screw Crush have ads?

Screw Crush shows ads; Concentration does not.

### Which is updated more often, Concentration or Screw Crush?

Concentration ships an update every 8 days, and Screw Crush weekly. Most recently, Concentration was updated on November 3, 2026 and Screw Crush on October 30, 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.*