Now on Google Play

Blackjack,
distilled.21

A quiet, considered take on the one card game everyone knows. No casino noise. No glitter. Just the math, the dealer, and your nerve — designed for Android.

50k+ hands dealt ~6.8 MB install size
21
A
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The only blackjack app that gets
out of your way.

No bloat. No distractions. Just clean, fast blackjack that fits in your pocket — and plays by the real rules every time you sit down.

01

Real casino rules, zero fluff.

6-deck shoe, 3:2 blackjack, soft 17 — the game you know, exactly as it should be played.
02

Every hand under 15 seconds.

No animations you didn't ask for, no coin-flip cutscenes. Just deal, decide, repeat.
03

Climb the daily leaderboard.

Fresh tables every day with their own stakes and ranking ladder. Show up, play sharp, move up.
TwentyOne app screenshot

Five rules,
no fluff.

Built for the player who already knows blackjack — and wants the cleanest place to play it. Every choice we made was about removing something, not adding it.

01

Classic rules.

Standard 6-deck shoe. Dealer stands on soft 17. Blackjack pays 3:2. The rules you already know — none you don't.

02

Quick hands.

Average hand takes 12 seconds. No spinning chips, no celebratory cutscenes. Deal, decide, deal again.

03

Offline by default.

The whole game lives on your device. No accounts, no invasive ads, no waiting for a server to wake up.

04

Strategy hints.

Optional basic-strategy nudges show you the statistically correct play. Toggle them on while you're learning.

05

Daily tables.

Rotating tables with their own conditions and coin caps. Climb the table or wait for the next one.

06

One screen.

No menus, no nested settings. Everything that matters fits in the height of your thumb.

~6.8mb
Install size
Smaller than most game apps' home screen.
0.
Invasive Ads. Trackers. Accounts.
Not one. Not one. Not one.
Hands per session
Stay as long as the table is open.

Pull up
a chair.

Free to install. No sign-up. Works on Android