# Concentration Card vs CardsOperations

The clearest difference is ads: CardsOperations at none against Concentration Card's shown. Concentration Card's advantage is iOS requirement (12.4 vs 18.0). On price, 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.

## The numbers

| Metric | Concentration Card | CardsOperations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 weeks |
| Size | 135 MB | 195 MB |
| Requires iOS | **12.4** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RamSystem](https://appshunter.io/developer/393507698) | [Shuya Tonozaki](https://appshunter.io/developer/1695515983) |

## What reviewers say

### Concentration Card

[App page](https://appshunter.io/ios/app/concentration-card/id6449998586)

**Features:** macOS Compatibility

**In-app purchases:** none


### CardsOperations

[App page](https://appshunter.io/ios/app/cardsoperations/id6749526938)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concentration Card free?

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

### Is CardsOperations free?

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

### Do Concentration Card or CardsOperations have ads?

Concentration Card shows ads; CardsOperations does not.

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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.*