Sum It Up Now

Train your brain with fast-paced math puzzles! Play against the clock or relax in Zen Mode. 100% free, zero ads, and global leaderboards. How fast can you Sum It Up?

Sum It Up is a fast, minimalist mental math puzzle game. Add the blue numbers, subtract the red ones, and tap the correct sum before time runs out.

Play quick 5-second rounds, train calmly in Zen Mode, and challenge your best score.

How to Play: • Blue = Plus: Add the positive numbers. • Red = Minus: Subtract the red numbers. • Beat the Clock: Each round starts with 5 seconds. Every 10 rounds, the time limit gets shorter until it reaches 3 seconds. • Zen Mode: Practice without pressure.

Key Features: • Minimalist design: Clean gameplay with no distractions. • High scores: Track your progress and beat your own records. • Haptic and audio feedback: Adjustable in settings. • No ads: Pure gameplay with no pop-ups or forced video ads. • Optional global leaderboards: Use Game Center to compare scores worldwide. By default, your scores stay local and private.

Train your mental arithmetic, test your reaction speed, or play a quick brain teaser on the commute.

Download Sum It Up and see how far you can go.