# SpeedJack 21 vs 블랙잭 트레이닝

The clearest difference is ads: 블랙잭 트레이닝 at none against SpeedJack 21's shown. SpeedJack 21's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.2). On price and in-app purchases 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 | SpeedJack 21 | 블랙잭 트레이닝 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/speedjack-21/id1511287771/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Ad-supported | — |
| Size | 86 MB | 37 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [KwangRim Ahn](https://appshunter.io/developer/1511287770) | [SeokJun Jeong](https://appshunter.io/developer/1875885909) |

## What reviewers say

### SpeedJack 21

[App page](https://appshunter.io/ios/app/speedjack-21/id1511287771)

Practice your blackjack basic strategy with this educational app. Achieve consecutive correct answers to rank your time record on the server and improve your casino winning average.

**Highlights:** Blackjack basic strategy practice, Consecutive correct answer challenge, Server-based time ranking, Improve casino winning average, User sign-in required for challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### 블랙잭 트레이닝

[App page](https://appshunter.io/ios/app/blackjacktraining/id6759489095)

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

**In-app purchases:** none


## Frequently asked questions

### Is SpeedJack 21 free?

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

### Is 블랙잭 트레이닝 free?

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

### Do SpeedJack 21 or 블랙잭 트레이닝 have ads?

SpeedJack 21 shows ads; 블랙잭 트레이닝 does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*