
Sum It Up Now
Fast Mental Math Puzzle
0 ratings
Free
In-App Purchases
About
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.
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What's New in Sum It Up Now
2.2
June 5, 2026
Minor UX/UI improvements
1
In-App Purchases
$0.99
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