# 21 Trainer vs Riverwind

The clearest difference is rating: Riverwind at 4.8 against 21 Trainer's 3.4. 21 Trainer's advantage is ratings volume (20 vs 6) and iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Riverwind holds the better App Store score, 4.8 against 3.4. Both are backed by a comparable volume of ratings — 20 and 6 respectively.

## The numbers

| Metric | 21 Trainer | Riverwind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (20 ratings)](https://appshunter.io/ios/app/21-trainer/id1309810444/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/riverwind/id6739754046/reviews)** |
| Number of ratings | **20** | 6 |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free | Free |
| Size | 37 MB | 79 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Bulletproof Entertainment](https://appshunter.io/developer/1309810443) | [Sovereign Technology Solutions, LLC](https://appshunter.io/developer/1385704403) |

## What reviewers say

### 21 Trainer

[App page](https://appshunter.io/ios/app/21-trainer/id1309810444)

Practice card counting to improve your blackjack skills. Challenge yourself to count as many cards as possible within a 30-second time limit.

**Highlights:** Card counting practice, 30-second challenges, Blackjack game improvement, Beat the dealer strategy

**Features:** macOS Compatibility

**In-app purchases:** none


### Riverwind

[App page](https://appshunter.io/ios/app/riverwind/id6739754046)

Access casino information, manage your loyalty points, and discover dining options. Stay informed about promotions and events with personalized notifications. Update your account details conveniently.

**Highlights:** View loyalty point balance, Redeem rewards, Explore restaurants and bars, Stay updated on promotions and events, Manage Wild Card account, Personalized notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 21 Trainer free?

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

### Is Riverwind free?

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

### Which has better reviews, 21 Trainer or Riverwind?

Riverwind is rated higher. 21 Trainer averages 3.4 out of 5 from 20 ratings, while Riverwind averages 4.8 from 6 ratings.

### Do 21 Trainer or Riverwind have ads?

Neither 21 Trainer nor Riverwind shows ads.

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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.*