24++ — App Store rankings

About this app

The developer's US App Store description, in full.

24++ turns the classic make-24 puzzle into a clean mathematical playground. Combine four number tiles, reshape values with exact transformations, and discover a path to 24 that feels as elegant as it is correct. START CLASSIC, THEN GO GEEK • Classic Lab: +, −, ×, and ÷ • Transform Lab: add square roots and factorials • Trig Lab: use exact sine and cosine values in degrees BUILT FOR EXPLORATION • Tap tiles or sweep across several tiles to select them • Combine up to four selected values from left to right (Multi-Select is on by default) • See every expression grow without typing formulas • Use exact arithmetic—24 is never accepted through rounding • Reveal progressive hints or a verified worked answer • Pick a random unsolved puzzle and continue where you left off • Filter large puzzle banks by solved and unsolved status • Find bookmarked and skipped puzzles together in Library • Skip a puzzle for now and return to it whenever you like MADE FOR IPHONE AND IPAD • Automatic, Day, and Night appearances • English, Simplified Chinese, and Japanese in the app • Sync progress, bookmarks, and skipped puzzles between your devices using the same Apple Account in iCloud • Keep playing offline; settings and in-progress calculations stay on each device • No separate app account, ads, or developer analytics Try 72 curated puzzles for free: 24 in each lab, using numbers 1–13. Full Lab is a one-time purchase that unlocks every available Classic, Transform, and Trig puzzle in the verified 1–13 bank, including future bank updates. Family Sharing is supported.

More from Ye Zhang

• TendCue: Recurring RemindersYe ZhangFree
• OurDance: Dance PracticeYe ZhangFree with purchases
• Groove Lab: Dance PracticeYe ZhangFree