# Concentration Game vs ペットに餌をあげよう！(足し算練習)

The clearest difference is update cadence: Concentration Game at every 5 months against ペットに餌をあげよう！(足し算練習)'s every 11 months. ペットに餌をあげよう！(足し算練習)'s advantage is iOS requirement (11.0 vs 15.0). 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 Game ships an update every 5 months, ペットに餌をあげよう！(足し算練習) every 11 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Concentration Game | ペットに餌をあげよう！(足し算練習) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (18 ratings)](https://appshunter.io/ios/app/concentration-game-solo/id1616382609/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 5 months** | Every 11 months |
| Monetization | Ad-supported | — |
| Size | 103 MB | 49 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hirokazu Uno](https://appshunter.io/developer/1570016990) | [Garhi Japan K.K.](https://appshunter.io/developer/1444709284) |

## What reviewers say

### Concentration Game

[App page](https://appshunter.io/ios/app/concentration-game-solo/id1616382609)

A classic single-player card game where you match pairs of numbers. The challenge increases with a decreasing time limit as you advance through levels. Enjoy a brain-training experience with this solo card game.

**Highlights:** Single-player card game, Match numbered pairs, Time limit decreases with level, Brain training, Classic card game mechanics

**In-app purchases:** none


### ペットに餌をあげよう！(足し算練習)

[App page](https://appshunter.io/ios/app/id6444930628)

**In-app purchases:** none


## Frequently asked questions

### Is Concentration Game free?

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

### Is ペットに餌をあげよう！(足し算練習) free?

ペットに餌をあげよう！(足し算練習) is free to download, with no in-app purchases.

### Do Concentration Game or ペットに餌をあげよう！(足し算練習) have ads?

Both Concentration Game and ペットに餌をあげよう！(足し算練習) show ads.

### Which is updated more often, Concentration Game or ペットに餌をあげよう！(足し算練習)?

Concentration Game ships an update every 5 months, and ペットに餌をあげよう！(足し算練習) every 11 months. Most recently, Concentration Game was updated on October 15, 2026 and ペットに餌をあげよう！(足し算練習) on October 16, 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.*