# Thirty vs Blackjack Sharp Trainer

The clearest difference is in-app purchases: Thirty at none against Blackjack Sharp Trainer's 1. Thirty also leads on iOS requirement (13.0 vs 15.1). Blackjack Sharp Trainer's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

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

Thirty ships an update every 2 months, Blackjack Sharp Trainer every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Thirty | Blackjack Sharp Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blackjack-sharp-trainer/id6760805232/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 101 MB | 31 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Koichi Iwasaki](https://appshunter.io/developer/1308795626) | [Dacite Dev LLC](https://appshunter.io/developer/1886293385) |

## What reviewers say

### Thirty

[App page](https://appshunter.io/ios/app/thirty-one/id6756990237)

**In-app purchases:** none


### Blackjack Sharp Trainer

[App page](https://appshunter.io/ios/app/blackjack-sharp-trainer/id6760805232)

Master blackjack strategy and card counting with this comprehensive training app. It offers detailed simulations, a unique roguelite mode, and personalized feedback to improve your game. Play offline and learn without interruptions.

**Highlights:** Basic strategy trainer with custom rule sets, Card counting simulator with configurable environments, Roguelite mode for strategic decision-making, Full hand play-out and independent splits, Non-blocking feedback and post-hand review, Mistake Journal with spaced repetition, Offline play

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sharp 21 Pro | $4.99 | one-time |


## Frequently asked questions

### Is Thirty free?

Thirty is free to download, with no in-app purchases.

### Is Blackjack Sharp Trainer free?

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

### Do Thirty or Blackjack Sharp Trainer have ads?

Thirty shows ads; Blackjack Sharp Trainer does not.

### Which is updated more often, Thirty or Blackjack Sharp Trainer?

Thirty ships an update every 2 months, and Blackjack Sharp Trainer every 3 weeks. Most recently, Thirty was updated on October 30, 2026 and Blackjack Sharp Trainer on October 31, 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.*