# Blackjack Drill Trainer vs Rad Index

The clearest difference is in-app purchases: Blackjack Drill Trainer at none against Rad Index's 1. Rad Index's advantage is device support and iOS requirement (15.0 vs 17.0). On price there is nothing between them.

Both are free to download. Rad Index sells 1 one-off in-app purchase. Blackjack Drill Trainer asks for nothing beyond the download.

## The numbers

| Metric | Blackjack Drill Trainer | Rad Index |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 8 MB | 39 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sarah Khosravani](https://appshunter.io/developer/1896519294) | [Simone Zen](https://appshunter.io/developer/1896760438) |

## What reviewers say

### Blackjack Drill Trainer

[App page](https://appshunter.io/ios/app/blackjack-drill-trainer/id6770143204)

**In-app purchases:** none


### Rad Index

[App page](https://appshunter.io/ios/app/rad-index/id6770671896)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rad Index Premium | $8.99 | one-time |


## Frequently asked questions

### Is Blackjack Drill Trainer free?

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

### Is Rad Index free?

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

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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.*