# Card Counting Academy vs Blackjack | 21

The clearest difference is ads: Card Counting Academy at none against Blackjack | 21's shown. Card Counting Academy also leads on review sentiment (100% vs 67%) and rating (5.0 vs 4.6). Blackjack | 21's advantage is ratings volume (60 vs 12). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Card Counting Academy sells 2 in-app purchases, starting at $4.99 per month and Blackjack | 21 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Card Counting Academy holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Blackjack | 21 has 60 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 100% of Card Counting Academy's written reviews are positive against 67% of Blackjack | 21's.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Card Counting Academy | Blackjack | 21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/card-counting-academy/id6757314731/reviews)** | [4.6 (60 ratings)](https://appshunter.io/ios/app/blackjack-21/id6790571321/reviews) |
| Number of ratings | 12 | **60** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Freemium | Free with in-app purchases |
| Size | 32 MB | 19 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [School of Blackjack LLC](https://appshunter.io/developer/1865979617) | [High Roller Studios](https://appshunter.io/developer/6790571323) |

## What reviewers say

### Card Counting Academy

[App page](https://appshunter.io/ios/app/card-counting-academy/id6757314731)

Learn to master blackjack with interactive lessons and real-time feedback. Develop optimal strategy and card counting skills for profitable play. Track your progress and sharpen your edge.

**Highlights:** Interactive blackjack lessons, Real-time decision feedback, Mastery tracking for basic strategy, Hi-Lo card counting system training, Running Count and True Count practice, Bet Spread training, EV Estimator tool (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $4.99 | per month |
| Premium - Annual | $39.99 | per year |


### Blackjack | 21

[App page](https://appshunter.io/ios/app/blackjack-21/id6790571321)

Practice blackjack with a personalized coach and interactive lessons. Improve your strategy through skill-based progression, tournaments, and detailed stats without risking real money.

**Highlights:** Personalized blackjack coach, Interactive lessons for strategy, Skill-based progression system, Weekly seeded tournaments, Detailed lifetime statistics, Customizable table rules, Haptic and sound feedback

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small chip pack | $0.99 | one-time |
| Medium chip pack | $2.99 | one-time |
| Large chip pack | $4.99 | one-time |
| Mega chip pack | $9.99 | one-time |


## Frequently asked questions

### Is Card Counting Academy free?

Card Counting Academy is free to download, with in-app purchases available.

### Is Blackjack | 21 free?

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

### Which has better reviews, Card Counting Academy or Blackjack | 21?

Card Counting Academy is rated higher. Card Counting Academy averages 5.0 out of 5 from 12 ratings, while Blackjack | 21 averages 4.6 from 60 ratings.

### Do Card Counting Academy or Blackjack | 21 have ads?

Blackjack | 21 shows ads; Card Counting Academy does not.

### Which is updated more often, Card Counting Academy or Blackjack | 21?

Card Counting Academy ships an update every 3 days, and Blackjack | 21 every 3 days. Most recently, Card Counting Academy was updated on October 28, 2026 and Blackjack | 21 on October 25, 2026.

---

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