Content rating
Everyone
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Content rating
Everyone
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About this game

KTO
A crisp little number puzzle - fold four cards into exactly 24. Tap a number, tap an operator (+ - x /), then tap a second number to combine them into a new card. Keep going until one card is left. Make it 24 and the level is yours. Ten levels that grow from tidy whole-number sums to puzzles that only crack open with division and fractions.

ALWAYS SOLVABLE, ALWAYS FAIR
Every deal is generated by seed and pre-checked by a real solver before you ever see it - so a way to make exactly 24 always exists and the same level is the same for everyone.

STARS, COINS AND A SHOP
Reach 24 under the par time with no misplays for up to three stars, and earn coins. Spend them in the shop and claim a small free gift. Everything is earned in-game - no pay-to-win.

MADE TO THINK
Clean violet colors, soft number cards, undo and reset always at hand - a few satisfying minutes of mental math whenever you have them.
KTO - four cards, one 24
Updated on
Aug 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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  • Data is encrypted in transit
  • Data can’t be deleted