# Desert Knights vs Concentration

The clearest difference is price: Desert Knights at Free against Concentration's $0.99. Desert Knights also leads on iOS requirement (8.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Desert Knights is free to download; Concentration costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Desert Knights ships an update fortnightly, Concentration every 8 days. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Desert Knights | Concentration |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/concentration-card-game/id1462017368/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | — | Paid |
| Size | 10 MB | 2 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Eric Katzenmeier](https://appshunter.io/developer/1216980419) | [Ankit Shah](https://appshunter.io/developer/1462017367) |

## What reviewers say

### Desert Knights

[App page](https://appshunter.io/ios/app/desert-knights/id1210484412)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Desert Knights free?

Desert Knights is free to download, with no in-app purchases.

### Is Concentration free?

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

### Do Desert Knights or Concentration have ads?

Neither Desert Knights nor Concentration shows ads.

### Which is updated more often, Desert Knights or Concentration?

Desert Knights ships an update fortnightly, and Concentration every 8 days. Most recently, Desert Knights was updated on October 29, 2026 and Concentration on November 3, 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.*