21advisor

Cards

Pick the visible dealer card and your current hand. Tap a selected card to remove it.

Dealer up-card Only the visible card matters

Player cards Add all cards in this hand

Player total—

Dealer up-card—

Hand type—

Hand state

Use this for split hands and doubled hands so advice stays legal for the website rules.

Hand context Action actually taken

Legal actions will appear after selecting cards.

Bankroll

For online RNG blackjack, bet sizing is risk control only. It does not create an edge.

Currency symbol Current bankroll Minimum bet

Bankroll—

Profit / loss—

Recommended next bet—

Set bankroll and minimum bet to get risk-aware bet guidance.

Profit/loss graph

Stake-style session curve using your recorded round results.

Record a round result to draw the graph.

Units—

Total wagered—

Biggest drawdown—

Streak—

Record result

Choose the result and the app applies the net amount to your bankroll.

Bet used

Net change: —

Bet strategy

Configured betting can increase/decrease stake for risk control, but RNG blackjack remains negative EV unless you have a real edge.

Betting mode Risk profile

Bankroll % bet Max bet cap Manual player edge %

Stop-loss % Take-profit % Max rounds

Best EV mode for RNG blackjack is flat minimum or not playing.

Session guard will activate after bankroll is set.

Game rules

No deck-count setting is used. This app assumes online random cards / continuous RNG.

Dealer hits soft 17Off = dealer stands on all 17s. Your site wording usually means stand on 17.

Double after split allowedTurn off if the website blocks double after splitting.

Resplit pairs allowedOnly affects whether SPLIT remains legal after an earlier split.

Surrender option

Blackjack pays 3:2. Insurance and even money are treated as negative-expectation side bets in RNG mode, so the advisor warns against them.

Session history

0 rounds

No results recorded yet.

Important note

Use this as a discipline and strategy tool, not as a promise of profit.

Online RNG blackjack gives no useful card-counting signal because previous cards do not reliably improve the next-hand edge. Basic strategy can reduce the house edge, but no progression system can turn a negative-EV RNG game into a positive-EV game.

What “Auto best” means

Auto best ranks strategies by long-term math first. In a 99.5% RTP RNG game, the best betting recommendation is normally minimum flat betting, or stopping if bankroll units are too low or session guards have triggered.

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Cards

Split helper

Hand state

Bankroll

Profit/loss graph

Record result