# Blackjack Oracle vs Blackjack Strategy Trainer 21

The clearest difference is in-app purchases: Blackjack Strategy Trainer 21 at none against Blackjack Oracle's 2. Blackjack Strategy Trainer 21 also leads on iOS requirement (15.0 vs 18.2). Blackjack Oracle's advantage is ads (none vs shown). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Blackjack Oracle sells 2 in-app purchases, starting at $3.99 per month. Blackjack Strategy Trainer 21 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Blackjack Oracle against 5.0 for Blackjack Strategy Trainer 21. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | Blackjack Oracle | Blackjack Strategy Trainer 21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/blackjack-oracle/id6767047207/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/blackjack-strategy-trainer-21/id6773344208/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Monetization | Freemium | **Ad-supported** |
| Size | 19 MB | 83 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Angelfire Labs LLC](https://appshunter.io/developer/1895478435) | [CWTI Ltd](https://appshunter.io/developer/1853539145) |

## What reviewers say

### Blackjack Oracle

[App page](https://appshunter.io/ios/app/blackjack-oracle/id6767047207)

Practice blackjack with an AI coach that provides real-time advice and explanations for every decision. Learn strategy through interactive gameplay and detailed hand recaps, all without real money.

**Highlights:** AI card coach with voice narration, Real-time probability display, Vegas 21 rules, No real money gambling, Instant gameplay, no accounts, Hand recaps and strategy lessons

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $24.99 | per year |


### Blackjack Strategy Trainer 21

[App page](https://appshunter.io/ios/app/blackjack-strategy-trainer-21/id6773344208)

Master blackjack with a strategy trainer that uses spaced repetition to adapt to your learning. Practice every hand decision with instant feedback and learn from structured lessons. Supports multiple rule sets for realistic casino training.

**Highlights:** Spaced repetition learning, Practice hit, stand, double, split, surrender, Supports S17, H17, and ENHC rule sets, Full basic strategy chart, Structured lessons for beginners, Realistic casino practice environment, Cloud sync across devices

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

**In-app purchases:** none


## Frequently asked questions

### Is Blackjack Oracle free?

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

### Is Blackjack Strategy Trainer 21 free?

Blackjack Strategy Trainer 21 is free to download, with no in-app purchases.

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

Blackjack Oracle and Blackjack Strategy Trainer 21 are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

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

Blackjack Strategy Trainer 21 shows ads; Blackjack Oracle does not.

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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.*