# Concentration vs Solitaire Plain

The clearest difference is update cadence: Solitaire Plain at every 2 days against Concentration's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Concentration ships an update every 9 days, Solitaire Plain every 2 days. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Concentration | Solitaire Plain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10 ratings)](https://appshunter.io/ios/app/concentration-old-school/id6752550348/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 37 MB | 17 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Neil Rohan](https://appshunter.io/developer/1522614743) | [Olav Lindkjolen](https://appshunter.io/developer/1873298146) |

## What reviewers say

### Concentration

[App page](https://appshunter.io/ios/app/concentration-old-school/id6752550348)

This game challenges your memory by matching pairs of tokens, revealing parts of a phonetic rebus puzzle. Enjoy solo play, local multiplayer, or online battles with friends. It's designed for fun and to sharpen focus and vocabulary.

**Highlights:** Memory token matching, Phonetic rebus puzzles, Solo, shared, and WiFi multiplayer modes, Nostalgic and icon token sets, Offline play capability, Smart timers for pacing

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

**In-app purchases:** none


### Solitaire Plain

[App page](https://appshunter.io/ios/app/solitaire-plain/id6761615953)

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

**In-app purchases:** none


## Frequently asked questions

### Is Concentration free?

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

### Is Solitaire Plain free?

Solitaire Plain is free to download, with no in-app purchases.

### Do Concentration or Solitaire Plain have ads?

Neither Concentration nor Solitaire Plain shows ads.

### Which is updated more often, Concentration or Solitaire Plain?

Concentration ships an update every 9 days, and Solitaire Plain every 2 days. Most recently, Concentration was updated on September 22, 2026 and Solitaire Plain on September 12, 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.*