# Blackjack 21 vs Blackjack

The clearest difference is ads: Blackjack 21 at none against Blackjack's shown. Blackjack 21 also leads on review sentiment (55% vs 33%). Blackjack's advantage is ratings volume (331K vs 5.7K) and chart position (#16 vs #150). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Blackjack 21 sells 12 in-app purchases, starting at $4.99 per month and Blackjack sells 14 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Blackjack 21 against 4.7 for Blackjack. That said, the two scores are not equally well evidenced: Blackjack has 331K ratings behind it against 5.7K, so its average is the more settled of the two. Written reviews are what separate them: 55% of Blackjack 21's written reviews are positive against 33% of Blackjack's.

Blackjack 21 ships an update fortnightly, Blackjack every 3 weeks. Both last shipped on October 26, 2026.

## The numbers

| Metric | Blackjack 21 | Blackjack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5.7K ratings)](https://appshunter.io/ios/app/blackjack-21-strategy-trainer/id597239290/reviews)** | [4.7 (331K ratings)](https://appshunter.io/ios/app/blackjack/id1472419762/reviews) |
| Number of ratings | 5.7K | **331K** |
| Positive reviews | **54.9% of reviews** | 33.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #150 | **#16** |
| Size | 69 MB | 289 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [BlackJack Trainer 21 Training AG](https://appshunter.io/developer/1824121005) | [Tripledot Studios](https://appshunter.io/developer/1191319103) |

## What reviewers say

### Blackjack 21

[App page](https://appshunter.io/ios/app/blackjack-21-strategy-trainer/id597239290)

**Currently charting:** #150 Top Free · Casino, #198 Top Grossing · Casino (US App Store)

Master blackjack with this strategy trainer. Learn optimal decisions for hitting, standing, splitting, doubling, and surrendering through realistic hands and instant feedback. Improve your confidence and decision-making at the table without any real money or distractions.

**Highlights:** Practice real blackjack decisions, Get instant feedback on moves, View adaptive basic strategy table, Learn professional playing techniques, No money or card counting involved

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All PRO features - monthly | $4.99 | per month |
| Flash Sale! PRO - monthly | $7.99 | per month |
| All PRO features - monthly | $7.99 | per month |
| All PRO features - monthly | $8.99 | per month |
| All PRO features - yearly | $23.90 | per year |
| All PRO features - yearly | $23.99 | per year |
| All PRO features - annually | $23.99 | per year |
| Flash Sale! PRO - yearly | $24.99 | per year |
| Pair Practice Mode | $1.99 | one-time |
| Soft Hand Training Mode | $1.99 | one-time |
| Custom Table Settings | $1.99 | one-time |
| All PRO features - lifetime | $49.99 | one-time |

**What reviewers like**

- 🚀 Great training
- 👍 Helpful for practicing basic strategy
- 👍 Solid interface
- 👍 Detailed feedback
- 👍 Easy to use UI

**What reviewers complain about**

- 🐛 Buggy with pop-ups and crashes
- 🔒 Subscription model for full functionality
- 🔒 Paywall for advanced features
- 👎 Lacks explanation for correct/incorrect moves
- 👎 Inaccurate basic strategy recommendations

**Reported bugs**

- Incorrect basic strategy recommendations
- Freezing and crashing issues
- Incompatibility with certain devices
- Subscription issues and unexpected charges

**Requested features**

- Allow continuing hands beyond initial deal
- Provide explanations for correct/incorrect moves
- Incorporate card counting and strategy deviations
- Customize settings to match casino rules
- Reset weakest hands chart


### Blackjack

[App page](https://appshunter.io/ios/app/blackjack/id1472419762)

**Currently charting:** #16 Top Free · Casino, #20 Top Free · Card, #80 Top Grossing · Casino, #103 Top Grossing · Card (US App Store)

Experience the thrill of a classic casino card game. Learn the rules, place bets, and aim for 21 to beat the dealer. Enjoy fair play with random cards and free chips to keep the fun going.

**Highlights:** Classic Blackjack gameplay, Betting and chip management, Learn to play Blackjack, Fair random card generation, Free chips for continuous play

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chip Pack 2 | $1.99 | one-time |
| Package 2 | $1.99 | one-time |
| Chip Pack 5 | $4.99 | one-time |
| Package 5 | $4.99 | one-time |
| Package 8 | $7.99 | one-time |
| Chip Pack 10 | $9.99 | one-time |
| Package 10 | $9.99 | one-time |
| Package 20 | $18.99 | one-time |
| Chip Pack 20 | $19.99 | one-time |
| Package 70 | $69.99 | one-time |
| Package 80 | $79.99 | one-time |
| Package 85 | $84.99 | one-time |
| Package 90 | $89.99 | one-time |
| Package 100 | $99.99 | one-time |

**What reviewers like**

- 🎮 Enjoyable gameplay
- 💡 Good practice for learning blackjack
- 👍 Realistic casino experience
- 🚀 Smooth interface

**What reviewers complain about**

- 🔍 Suspicious dealer odds
- 📺 Excessive ads after every few hands
- 💰 Game feels rigged to push in-app purchases
- 🤖 Dealer gets unrealistic winning streaks

**Reported bugs**

- Game freezes when unable to load ads
- Chips disappear after app crashes

**Requested features**

- Add insurance option for dealer blackjack
- Implement card counting features
- Offer ad-free paid version
- Allow adjusting deck size and table rules


## Frequently asked questions

### Is Blackjack 21 free?

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

### Is Blackjack free?

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

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

Blackjack 21 is rated higher. Blackjack 21 averages 4.7 out of 5 from 5.7K ratings, while Blackjack averages 4.7 from 331K ratings.

### Do Blackjack 21 or Blackjack have ads?

Blackjack shows ads; Blackjack 21 does not.

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

Blackjack 21 ships an update fortnightly, and Blackjack every 3 weeks. Most recently, Blackjack 21 was updated on October 26, 2026 and Blackjack on October 26, 2026.

### Which is more popular, Blackjack 21 or Blackjack?

Blackjack 21 currently peaks at #150 in the App Store charts, and Blackjack at #16. Chart position reflects recent download velocity rather than total install base.

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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.*