# 21 Rush vs Crystara

The clearest difference is in-app purchases: Crystara at none against 21 Rush's 6. Crystara also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 21 Rush sells 6 one-off in-app purchases. Crystara asks for nothing beyond the download.

## The numbers

| Metric | 21 Rush | Crystara |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Size | 106 MB | 7 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ChennaiGames Studio Private Limited](https://appshunter.io/developer/1758903074) | [ROKONTECH LLC](https://appshunter.io/developer/1347808056) |

## What reviewers say

### 21 Rush

[App page](https://appshunter.io/ios/app/21-rush-ultimate-card-game/id6758206291)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Pack | $0.29 | one-time |
| No Ads | $0.99 | one-time |
| Medium Pack | $0.99 | one-time |
| Large Pack | $1.99 | one-time |
| Mega Pack | $2.99 | one-time |
| VIP Pack | $3.99 | one-time |


### Crystara

[App page](https://appshunter.io/ios/app/crystara/id6760728987)

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

**In-app purchases:** none


## Frequently asked questions

### Is 21 Rush free?

21 Rush is free to download, with in-app purchases available.

### Is Crystara free?

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

### Do 21 Rush or Crystara have ads?

21 Rush shows ads; Crystara 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.*