Four24: Make 24 Card Game

Fenix Development

About this game

Four24 is the classic make-24 card game, rebuilt for one thumb and zero noise.

Every round deals four number cards (1 to 13). Use + - x / and parentheses to make 24 - and you must use all four cards. Fractions are exact, so clever lines like 8 / (3 - 8 / 3) = 24 work the way they should.

STAGE MODE
300 handcrafted levels across 15 stages, from gentle warm-ups to proper brain-teasers. Medals for your best runs, levels unlock as you clear them.

SPEED MODE
Ten fresh puzzles, three minutes. How many can you solve?

BUILT FOR REAL LIFE
- One-hand mode: cards, expression and controls all drop into thumb reach.
- Flexible input: brackets gray out when they can't help, tap ) to close one group at a time, and unfinished brackets are auto-closed when you solve. Tap a used card to pull it back out.
- Live evaluation: the strip shows the running value of your expression as you build it.
- Stuck? The hint button shows one valid solution.

PRIVACY BY DESIGN
No ads. No in-app purchases. No accounts, analytics or trackers. Your progress lives only on your device. The one thing that can reach the network is the optional Feedback button: if you choose to use it, the message you type is sent to Fenix so we can fix problems and improve the game - and nothing else is uploaded. Details in our privacy policy.

Whether you are five minutes deep on the bus or chasing a perfect Speed Mode run, Four24 is just the game - nothing else.

What’s new

Feedback: a Feedback button was added on the home screen. If you choose to use it, the message you type is sent to Fenix over HTTPS so we can fix problems and improve the game. It is completely optional and nothing else is uploaded; the game itself still never touches the network. Details in our privacy policy.