# CountJack — Unique Hi-Lo counting trainer

> Unique Hi-Lo counting trainer (iPhone/iPad app by Andrey Seleznev.)

- Source: https://appshunter.io/ios/app/countjack/id6462346330 (this page in markdown: same URL + `.md`)
- Developer: [Andrey Seleznev](https://appshunter.io/developer/1665252540)
- Category: Games, Entertainment, Casino, Puzzle
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 16.1 · 64 MB
- Languages: English, French, German, Polish, Portuguese, Russian, Chinese, Spanish
- Released: 2023-11-01
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/countjack/id6462346330/reviews.md

## What is CountJack?

Play blackjack and practice card counting like a pro with CountJack.

Test your skills in the classic game of 21, practice Hi-Lo counting, enjoy detailed statistics to track your progress, and customize the casino rules to suit your style. Explore our shop offering a variety of tables and cards.

Why CountJack?

- Unique card counting trainer with multiple difficulty levels, which will be a challenge even for professional players.
- Adjustable casino settings to fit your needs.
- Exhaustive statistics allow you to monitor your progress.
- A fancy shop with a variety of content that you can buy using in-game currency.
- No annoying ads. All ads in the game are optional, so they won't disrupt your enjoyment of the process.

Get CountJack for the ultimate blackjack experience!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 1 coin | $0.99 | one-time |
| 20 coins | $2.99 | one-time |
| 50 coins | $3.99 | one-time |
| 100 coins | $4.99 | one-time |
| 5 coins | $1.99 | one-time |



## Version history (last 5 releases)

### 1.1.8 — 2023-11-07

Double down after split is now available!

### 1.1.7 — 2023-11-05

- Shop bug fixed

### 1.1.6 — 2023-11-03

- 1000 bonus currencies
- Practice rewards increased
- Localization bugs fixed

### 1.1.5 — 2023-11-02

Small design updates

### 1.1.4 — 2023-11-01

No release notes.

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## More apps by Andrey Seleznev

- [The Puzzle Of 15](https://appshunter.io/ios/app/the-puzzle-of-15/id1665252538)
- [USA Unit Converter](https://appshunter.io/ios/app/usa-unit-converter/id1669915305)
- [Simple Diet App](https://appshunter.io/ios/app/simple-diet-app/id6499020664)
- [Bricks Room](https://appshunter.io/ios/app/bricks-room/id6760179332)
- [Personal Finance Guru](https://appshunter.io/ios/app/personal-finance-guru/id6760541834)

All apps by Andrey Seleznev: https://appshunter.io/developer/1665252540

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*