# BlackJack8

> Blackjack card counting trainer with multiple systems and strategy analysis. (iPhone/iPad app by ANYONE INC..)

- Source: https://appshunter.io/ios/app/blackjack8/id1577319261 (this page in markdown: same URL + `.md`)
- Developer: [ANYONE INC.](https://appshunter.io/developer/1577319263)
- Category: Entertainment, Games
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.6 · 61 MB
- Languages: English, Japanese
- Released: 2021-11-16
- Data updated: 2026-06-07
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/blackjack8/id1577319261/reviews.md

## What is BlackJack8?

The number of cards remaining can be predicted by inputting cards. Players can predict the number of cards remaining
by inputting cards, and deriving the best strategy by themselves.
Three counting systems are introduced.
HI AND LOW(FOR GENERAL BEGINNERS)
HI OPT II(FOR ADVANCED AND CAUTIOUS PLAYERS) ZEN(FOR ADVANCED PLAYERS)
Data analysis to determine when to make a decision.The number is set to be added to the EXP (expected value) of the method, which is considered independently. The higher the system count, the better it is for the player.g can be predicted by inputting cards.Players can predict the number of cards remainingby inputting cards, and deriving the best strategy by themselves.Three counting systems are introduced.HI AND LOW(FOR GENERAL BEGINNERS)HI OPT II(FOR ADVANCED AND CAUTIOUS PLAYERS)ZEN(FOR ADVANCED PLAYERS)Data analysis to determine when to make a decision.The number is set to be added to the EXP(expected value) of the method, which is considered independently. The higher the system count, thebetter it is for the player.

※You will need to purchase a subscription to access this app.

Term of use => https://oncasi.win/terms-and-conditions/

## Key features

- Card counting strategy training
- Three counting systems (Hi-Lo, Hi Opt II, Zen)
- Data analysis for decision making
- Predict remaining cards
- EXP (expected value) calculation
- Beginner and advanced modes

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Subscription(1 month) | $29.99 | per month |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/blackjack8/id1577319261/reviews.md

### 5/5 — 概要説明

*2025-01-16, version 1.2.25*

あくまで遊びのトレーニングアプリです。
1、まずは正確に入力してプレイしてください。
2、勝敗も入れてください。
3、スライドするとカウント別で勝率が表示されます。
4、EXPは期待値です。ケリー理論を参考に独自数字となっています。
*右に2回スライドするとカウント別のBSが表示されますので、参考にしてください。
*右に1回スライドすると間違って入力した数字を選択すると上書き修正できます。
*左にスライドすると勝敗表が表示されますが、これも修正できます。

自分のプレイスタイルで明確に50%以上勝率カウントと50%以下なるカウントがわかってくると思います。

BJは48%が平均勝率なので、それ以上のカウントは攻めるべきであり、それ以下は守る戦略を勉強する為のアプリです。

*H & L 以外を選択した場合に戻ってしまう不具合は修正しました。
画面から10が見えなくなる問題修正中です。

### 1/5 — 使えない

*2024-01-05, version 1.2.19*

Zenカウンティングですら正しく計算できていない。
トライアルで確認できて良かった。

### 5/5 — 高いですが素晴らしい

*2022-11-25, version 1.2.2*

h&l exp とtrue expの意味を教えてください

## Frequently asked questions about BlackJack8

### What is BlackJack8?

BlackJack8 is a mobile application designed to help users learn and practice card counting strategies for the game of blackjack. It provides tools for predicting remaining cards and analyzing gameplay to derive optimal strategies.

### Does BlackJack8 have ads?

No, BlackJack8 does not contain advertisements. The application is free to download and offers its features through a subscription model.

### What are the subscription options for BlackJack8?

BlackJack8 offers a monthly subscription priced at $29.99 per month. A free trial period is included with the subscription.

### What card counting systems are available in BlackJack8?

BlackJack8 introduces three distinct card counting systems: HI AND LOW (for general beginners), HI OPT II (for advanced and cautious players), and ZEN (for advanced players).

### How does BlackJack8 help with strategy?

The app allows players to input cards to predict the number of cards remaining and derive the best strategy. It also includes data analysis to determine optimal decision-making points based on expected value (EXP).

### What devices is BlackJack8 compatible with?

BlackJack8 is compatible with iPhone, iPad, and iPod devices.

### When was BlackJack8 last updated?

The latest version of BlackJack8, 1.2.26, was last updated on January 24, 2025.

### What is the age rating for BlackJack8?

BlackJack8 has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 1.2.26 — 2025-01-24

The probability of the 0 key is difficult to see, so it has been corrected.

### 1.2.25 — 2025-01-13

One display bug has been fixed.

### 1.2.22 — 2024-02-18

Fixed one display problem.

### 1.2.19 — 2023-03-14

A table has been added to guide you through the next move for the cards in your hand.
Swipe right twice to view the page on the left.

### 1.2.2 — 2022-04-11

A one-month free trial period is available.
Expression adjusted.

## Apps similar to BlackJack8

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Waitinglist](https://appshunter.io/ios/app/waitinglist/id6474965583) | 4.1 (28) | Free | Entertainment |
| [Spatial Disk](https://appshunter.io/ios/app/spatial-disk/id6748513818) | — | Free | Entertainment |
| [チャットプル-気が合う人と話せる匿名チャット](https://appshunter.io/ios/app/id6443937770) | — | Free | Entertainment |
| [Pokeri: Live Poker Tracker](https://appshunter.io/ios/app/pokeri-live-poker-tracker/id1544085497) | 3.6 (11) | Free | Entertainment |
| [チンチロ収支表](https://appshunter.io/ios/app/id6683299593) | — | Free | Entertainment |
| [BLOW](https://appshunter.io/ios/app/blow/id6737978825) | — | Free | Entertainment |

## More apps by ANYONE INC.

- [Act Study](https://appshunter.io/ios/app/act-study/id6469045101)

All apps by ANYONE INC.: https://appshunter.io/developer/1577319263

## Related topics

[card counting app](https://appshunter.io/ios/topics/card-counting-app)

---

*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 2026-06-07.*