# Blackjack Trainer: TwentyOne — Card Counting & Hi-Lo Practice > Blackjack training app for improving decision-making, card counting, and strategy. (iPhone/iPad app by Ryan Herga.) - Source: https://appshunter.io/ios/app/blackjack-trainer-twentyone/id6760004532 (this page in markdown: same URL + `.md`) - Developer: [Ryan Herga](https://appshunter.io/developer/1880901055) - Category: Games, Education, Card, Strategy - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 12+ - Requires: iOS 15.1 · 38 MB - Languages: American English - Released: 2026-04-16 - Data updated: 2026-08-11 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/blackjack-trainer-twentyone/id6760004532/reviews.md ## What is Blackjack Trainer? TwentyOne: Blackjack Trainer is a blackjack training app focused on helping players build faster, more accurate decision-making through realistic practice drills, structured training modes, and performance tracking. Whether you're learning basic strategy for the first time or refining years of instinctive play, TwentyOne is designed to help you practice with purpose and improve through repetition. PRACTICE WITH PURPOSE Train with realistic blackjack hands and customizable rules that let you focus on the situations where you need the most improvement. Every decision includes instant feedback so you can quickly learn from mistakes and reinforce correct play. Configurable rules: H17/S17, Double After Split, Surrender Focused practice drills for hard totals, soft totals, pairs, doubles, and surrenders Immediate feedback showing the correct play and explanation behind it Fast-paced training designed for repetition and muscle memory Also includes card counting practice modes built around the Hi-Lo system. Train instant card recognition with Flash Drill, maintain accurate running counts through timed card sequences, or push your limits in Ramp Mode where the speed and difficulty continuously increase. LEARN THE RIGHT PLAY Supplement your practice with structured lessons that explain the reasoning and math behind each decision. Lessons are designed to reinforce understanding alongside repetition-based training. 6 modules / 40+ lessons covering fundamentals, hard hands, soft hands, pairs, advanced concepts, and more Interactive examples with instant feedback and explanations Module quizzes and strategy chart highlights to reinforce learning TRACK YOUR PROGRESS Detailed analytics help you identify weak areas and measure improvement over time. Accuracy trends over 7 days, 30 days, or all time Category breakdowns: hard totals, soft totals, pairs, doubles, surrenders Session history with hands played, accuracy, and mistake summaries Achievement badges for milestones and streaks REFERENCE ANYTIME Access the full basic strategy chart whenever you need it — during lessons, practice sessions, or standalone review. Color-coded strategy chart for your configured rules Tap any chart cell for an explanation of the recommended play Glossary of key blackjack terms IMPORTANT: This app is an educational tool only. It does not involve real money and does not guarantee results. Basic strategy reduces the house edge but does not eliminate it. Free to start. Module 1 is included at no cost. Unlock decision practice, the full curriculum and advanced stats with Premium. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Realistic practice drills - Structured training modes - Performance tracking - Card counting practice - Basic strategy chart - Glossary of terms ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly Premium | $1.99 | per month | | Annual Premium | $9.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Premium | $19.99 | one-time | ## Frequently asked questions about Blackjack Trainer ### Does Blackjack Trainer have ads? No, Blackjack Trainer is ad-free, allowing for an uninterrupted learning experience. ### What is the price of Blackjack Trainer? Blackjack Trainer is free to start, with Module 1 included at no cost. Premium access to unlock decision practice, the full curriculum, and advanced stats is available via subscription plans. ### What are the subscription options for Blackjack Trainer? Blackjack Trainer offers a Monthly Premium subscription for $1.99 and an Annual Premium subscription for $9.99. ### What blackjack rules can be configured in Blackjack Trainer? You can configure rules such as H17/S17, Double After Split, and Surrender to tailor the practice to your preferred game settings. ### Does Blackjack Trainer offer offline play? The provided data does not specify if Blackjack Trainer supports offline play. However, its focus on practice drills and lessons suggests it may function without a constant internet connection. ### How does Blackjack Trainer help with card counting? Blackjack Trainer includes card counting practice modes like Flash Drill for instant recognition, timed sequences for running counts, and Ramp Mode for increasing speed and difficulty. ### What is the age rating for Blackjack Trainer? Blackjack Trainer has an age rating of 12+, indicating it is suitable for users aged 12 and older. ### How often is Blackjack Trainer updated? The latest version is 1.3, last updated on June 15, 2026. This indicates recent development activity, suggesting regular updates are provided. ## Version history (last 5 releases) ### 1.5 — 2026-08-05 Added support for older iPhone models. ### 1.4 — 2026-08-03 New Statistics Page, More configuration on decision practice mode ### 1.3 — 2026-06-15 We continue to deliver new and exciting ways to learn Blackjack ### 1.2 — 2026-06-01 We continue to deliver new and exciting ways to learn Blackjack ### 1.1 — 2026-05-31 We've redesigned the UI, and added Card Counting modes! ## Related topics [blackjack trainer 21](https://appshunter.io/ios/topics/blackjack-trainer-21) --- *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 2026-08-11.*