# Concentration Sushi vs playing cards Memory

The clearest difference is rating: playing cards Memory at 5.0 against Concentration Sushi's 4.0. playing cards Memory also leads on in-app purchases (none vs 2). Concentration Sushi's advantage is update cadence (every 3 months vs every 16 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Concentration Sushi sells 2 one-off in-app purchases. playing cards Memory asks for nothing beyond the download.

playing cards Memory holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Concentration Sushi ships an update every 3 months, playing cards Memory every 16 months. The most recent releases landed on August 12, 2026 and June 25, 2026 respectively.

## The numbers

| Metric | Concentration Sushi | playing cards Memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/concentration-sushi/id458072561/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/playing-cards-memory/id1273745786/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 95.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 16 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 132 MB | 56 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qualia Systems Inc.](https://appshunter.io/developer/388873648) | [Jun Koizumi](https://appshunter.io/developer/1143108654) |

## What reviewers say

### Concentration Sushi

[App page](https://appshunter.io/ios/app/concentration-sushi/id458072561)

Enhance your focus with this memory-based game. Test your recall by matching sushi cards with varying storage times across multiple difficulty levels. Compete with friends via Game Center.

**Highlights:** Memory card matching, Multiple game modes, Adjustable card storage times, Game Center integration, Infinite mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| V.S.Mode | $0.99 | one-time |
| No Ads | $3.99 | one-time |


### playing cards Memory

[App page](https://appshunter.io/ios/app/playing-cards-memory/id1273745786)

A classic card matching game designed to test and improve your memory. Play solo against the computer with adjustable difficulty or challenge a friend on the same device. Perfect for brain training and casual fun.

**Highlights:** Single player game modes, Two player competition, Adjustable card display time, Choice of card arrangements, Easy-to-understand rules, Game record tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concentration Sushi free?

Concentration Sushi is free to download, with in-app purchases available.

### Is playing cards Memory free?

playing cards Memory is free to download, with no in-app purchases.

### Which has better reviews, Concentration Sushi or playing cards Memory?

playing cards Memory is rated higher. Concentration Sushi averages 4.0 out of 5 from 2 ratings, while playing cards Memory averages 5.0 from 1 ratings.

### Do Concentration Sushi or playing cards Memory have ads?

Both Concentration Sushi and playing cards Memory show ads.

### Which is updated more often, Concentration Sushi or playing cards Memory?

Concentration Sushi ships an update every 3 months, and playing cards Memory every 16 months. Most recently, Concentration Sushi was updated on August 12, 2026 and playing cards Memory on June 25, 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.*