# 21 Cheater

> 21 Cheater (iPhone/iPad app by Jeff Corporon.)

- Source: https://appshunter.io/ios/app/21-cheater/id6815495262 (this page in markdown: same URL + `.md`)
- Developer: [Jeff Corporon](https://appshunter.io/developer/6815495264)
- Category: Education
- Price: Free
- Age rating: 17+
- Requires: iOS 15.0 · 8 MB
- Languages: English
- Released: 2026-10-06
- Data updated: 2026-10-09
- User reviews in markdown: https://appshunter.io/ios/app/21-cheater/id6815495262/reviews.md

## What is 21 Cheater?

Play every hand like the math says.

21 Cheater is a blackjack strategy and card-counting trainer. It deals you real hands as flashcards and drills the right play until you stop having to think about it. Then it tells you why.

DRILL EVERY DECISION
• Hard totals, soft hands and pairs, dealt as flashcards
• Hit, stand, double, split and surrender, graded instantly
• Set the table rules you actually play: decks, dealer hits or stands on soft 17, doubling after splits, surrender

EVERY HAND EXPLAINED
Tap "Why?" on any hand to see the dealer's bust rate for that upcard, what your hand can realistically become, and the expected value of every option, so you understand the play instead of memorising a chart.

LEARN TO COUNT
• Hi-Lo true count deviations: the Illustrious 18 and the Fab 4
• Insurance at +3 and the extended index set
• Hands are dealt near each index so you are tested on both sides of the line

FIX YOUR LEAKS
• Accuracy, streaks and speed tracked by hand type
• Every miss is recorded, and weak-hand mode keeps dealing the hands you get wrong until they stick
• Full strategy charts for your rules, with count deviations marked

BUILT ON THE MATH
The strategy tables come from an exact expected-value calculation over a real six-deck shoe, then checked cell by cell against the published charts.

Free, with every feature included. No account, no ads, no tracking, and it works fully offline.

21 Cheater is a training tool for learning correct blackjack play. It involves no real-money gambling, no wagering and no virtual currency, and it does not promise winning results.


## Version history (last 1 release)

### 1.0 — 2026-10-07

No release notes.

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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 2026-10-09.*