
TwentyFour: Make 24
Four numbers. One answer.
0 ratings
Free
Rating summary
About
Make exactly 24 using four numbers—and discover how many elegant paths hide in simple arithmetic.
TwentyFour is a calm, handcrafted number puzzle for iPhone and iPad. Tap cards in calculation order and choose +, −, ×, or ÷ either between the two cards or after selecting both. Keep combining until one exact result remains. Every number must be used exactly once.
Features:
• 120 verified puzzles across six progressive chapters
• Exact fractions and negative intermediate results
• Step hints, undo, redo, restart, and full solutions
• Three-star goals based on hints, time, and efficient moves
• A deterministic daily challenge that works offline
• Free practice with adjustable difficulty
• Achievements and local statistics
• Dark Mode, Dynamic Type, VoiceOver, and Reduce Motion
• No ads, accounts, in-app purchases, analytics, or network connection
There is no failure countdown. Take your time, experiment, and build stronger number sense at your own pace.
Can you make 24?
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What's New in TwentyFour
1.0
July 15, 2026

