# SpeedJack 21 vs Blackjack Trainer

The clearest difference is in-app purchases: SpeedJack 21 at none against Blackjack Trainer's 4. SpeedJack 21 also leads on iOS requirement (13.0 vs 16.4). Blackjack Trainer's advantage is ads (none vs shown) and ratings volume (5 vs 1). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Blackjack Trainer sells 4 in-app purchases, starting at $9.99 per year. SpeedJack 21 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for SpeedJack 21 against 5.0 for Blackjack Trainer. That said, the two scores are not equally well evidenced: Blackjack Trainer has 5 ratings behind it against 1, so its average is the more settled of the two.

SpeedJack 21 ships an update fortnightly, Blackjack Trainer every 2 weeks. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | SpeedJack 21 | Blackjack Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/speedjack-21/id1511287771/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/blackjack-trainer-strategy/id6789853035/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 86 MB | 55 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [KwangRim Ahn](https://appshunter.io/developer/1511287770) | [Appana Ventures LLC](https://appshunter.io/developer/6822964993) |

## 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


### Blackjack Trainer

[App page](https://appshunter.io/ios/app/blackjack-trainer-strategy/id6789853035)

Master blackjack strategy with this trainer. Learn optimal plays for any table rules, practice card counting, and improve your decision-making through interactive drills and instant feedback. Track your progress and build consistent habits for better gameplay.

**Highlights:** Adaptive basic strategy charts, Hi-Lo card counting drills, Instant feedback and explanations, Progress tracking and mastery heatmap, Offline practice mode, Daily habit building features

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly | $9.99 | per year |
| Pro Yearly | $19.99 | per year |
| Pro Lifetime | $29.99 | one-time |
| Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is SpeedJack 21 free?

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

### Is Blackjack Trainer free?

Blackjack Trainer is free to download, with in-app purchases available.

### Which has better reviews, SpeedJack 21 or Blackjack Trainer?

SpeedJack 21 and Blackjack Trainer are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.

### Do SpeedJack 21 or Blackjack Trainer have ads?

SpeedJack 21 shows ads; Blackjack Trainer does not.

### Which is updated more often, SpeedJack 21 or Blackjack Trainer?

SpeedJack 21 ships an update fortnightly, and Blackjack Trainer every 2 weeks. Most recently, SpeedJack 21 was updated on November 3, 2026 and Blackjack Trainer on November 10, 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.*