# 21 Trainer vs Blackjack Trainer

The clearest difference is ads: Blackjack Trainer at none against 21 Trainer's shown. Blackjack Trainer also leads on rating (5.0 vs 4.7) and update cadence (fortnightly vs every 2 months). 21 Trainer's advantage is ratings volume (3 vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 21 Trainer sells 4 in-app purchases, starting at $8.99 per 7 days and Blackjack Trainer sells 6 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Blackjack Trainer holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

21 Trainer ships an update every 2 months, Blackjack Trainer fortnightly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 21 Trainer | Blackjack Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/21-trainer-blackjack-c/id6786336863/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blackjack-trainer-countr/id6792565338/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 23 MB | 66 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [London Technology](https://appshunter.io/developer/1611590239) | [Foxcraft LLC](https://appshunter.io/developer/6792565610) |

## What reviewers say

### 21 Trainer

[App page](https://appshunter.io/ios/app/21-trainer-blackjack-c/id6786336863)

Master blackjack strategy with this trainer. Practice realistic hands, receive instant feedback on your decisions, and improve your accuracy. Ideal for beginners and experienced players looking to sharpen their skills without real-money gambling.

**Highlights:** Learn blackjack basic strategy, Practice realistic hands, Train hit, stand, split, double, surrender, Instant feedback on decisions, Improve accuracy, Build faster decision-making

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blackjack Training PRO | $8.99 | per 7 days |
| Blackjack Training PRO | $44.99 | per year |
| Blackjack Training PRO | $89.99 | per year |
| Blackjack Training PRO | $119.99 | one-time |


### Blackjack Trainer

[App page](https://appshunter.io/ios/app/blackjack-trainer-countr/id6792565338)

Master blackjack strategy with guided lessons, instant feedback, and simulated practice. This educational tutor helps build decision-making skills before playing in a casino. Learn fundamentals, practice scenarios, and track your progress with detailed analytics.

**Highlights:** Guided blackjack strategy lessons, Instant feedback on decisions, Simulated practice scenarios, Basic and advanced concept drills, Progress tracking and analytics, Configurable blackjack rules

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COUNTR+ Weekly | $3.99 | per 7 days |
| COUNTR+ Monthly | $9.99 | per month |
| COUNTR+ Annual Exit Offer | $24.99 | per year |
| COUNTR+ Annual | $49.99 | per year |
| Yearly | $49.99 | per year |
| COUNTR+ Annual | $49.99 | per year |


## Frequently asked questions

### Is 21 Trainer free?

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

### Is Blackjack Trainer free?

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

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

Blackjack Trainer is rated higher. 21 Trainer averages 4.7 out of 5 from 3 ratings, while Blackjack Trainer averages 5.0 from 1 ratings.

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

21 Trainer shows ads; Blackjack Trainer does not.

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

21 Trainer ships an update every 2 months, and Blackjack Trainer fortnightly. Most recently, 21 Trainer was updated on October 31, 2026 and Blackjack Trainer on November 6, 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.*