Bankroll: Blackjack Practice

Bankroll is a practice app for serious blackjack players. Drill basic strategy until it's automatic. Train your count until it survives a noisy table. Run a full shoe with bet ramping and an end-of-shoe scorecard. Then close the app and go play.

EDUCATIONAL TRAINING ONLY — NO REAL MONEY, NO GAMBLING

Bankroll is a training tool, not a casino. There is no real-money gambling and no wagering of real currency. There are no prizes, no payouts, no cash-outs, and no way to win or lose anything of value. There are no in-app purchases, no chips or coins to buy, and no links to any casino, sportsbook, or gambling operator. The "units" shown in practice modes are a dimensionless practice ledger used to teach bet sizing — they have no monetary value, cannot be purchased, and cannot be redeemed for anything. The only thing at stake is your own accuracy. Intended for adults 18+.

PRACTICE IN THREE SHAPES

Play — full-hand simulation.
• Quick Hand: one-at-a-time reps, no betting, pure decision practice.
• Free Play: continuous hands with stake sizing on a practice unit ledger.
• Full Shoe: deal to the cut card with an always-on count HUD, a true-count bet ramp, and an end-of-shoe scorecard.

Drills — thirty-second skill builders.
• Basic strategy drill, filtered to what you're bad at: pairs, soft hands, stiff totals, surrender spots, split and double decisions.
• Hi-Lo speed count drill against the clock, single-card or pair cancellation.
• True count conversion drill, until the division is reflexive.

Reference — the canonical content.
• A rule-aware basic strategy chart that redraws itself as you change the rules.
• Seven counting systems: Hi-Lo, KO, Red 7 (suit-aware), Zen, Hi-Opt I, Hi-Opt II, Omega II.
• The full Illustrious 18 and Fab 4 deviation indices, with true count thresholds and a plain-English reason for each.
• A glossary and a curated reading list — Wizard of Odds, Thorp, Wong, Schlesinger, Snyder, Griffin.

THREE HINT MODES, SO YOUR STATS MEAN SOMETHING

Trainer always shows the correct play. Coached hides it behind a tap. Real gives you nothing — and only Real-mode decisions count toward your accuracy, so your numbers reflect what you'd actually do at a table.

A TRUSTED ENGINE

Pure-Dart engine, fully tested, calibrated cell by cell against Wizard of Odds (6 deck, S17, DAS, late surrender) and Schlesinger's Blackjack Attack. Every shoe is seeded, so every drill is replayable.

Six rule presets — Downtown, Strip Premium, Single Deck, Double Deck, European No-Hole, and Carnival 6:5 — cover deck count, S17 or H17, double after split, late surrender, dealer peek or ENHC, 3:2 or 6:5 payout, and penetration. Surrender and dealer soft 17 also toggle directly. The strategy chart follows whatever you pick.

STATS THAT EARN THEIR PLACE

An accuracy heatmap over every hard, soft, and pair cell, built from your basic strategy drill reps, so you can see exactly which cells you keep missing. Lifetime hands, win rate, and EV per hand. Recent session history. Your weakest cells surface on the home screen, each one tappable straight into a drill that targets it.

OFFLINE-FIRST, PRIVATE BY DEFAULT

Bankroll works on an airplane. No account. No sign-up. No ads. No analytics or tracking SDKs of any kind. Everything you do is stored in a local database on your device and never leaves it. Settings → Wipe all data deletes all of it, permanently, whenever you want.

WHO IT'S FOR

Advantage players who want a five-minute warm-up before a session. Aspiring counters who can count off the table but get sloppy under pressure. Serious recreational players who just want to stop giving away edge on 16 versus 10.

Bankroll teaches the math behind advantage play. It does not offer gambling in any form, and it never takes your money.

Train before you sit.