Engage your mind with a pure logic number puzzle. Swap tiles to match target sums in distinct regions. Hundreds of handcrafted levels and daily challenges await, with global leaderboards to test your skills.
1.1.1
August 4, 2026
UI updates, colorblind mode fix, Gamecenter syncing.
$3.99
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Gridsum is a logic puzzle game where you swap tiles on a grid to make each colored region simultaneously match its target sum. It's designed for pure logic and strategic planning, with no timers or luck involved.
The grid is divided into colored regions, each with numbered tiles and a target sum. You swap any two tiles, and the totals update in real-time. The goal is to find the arrangement where every region hits its target sum at once.
Yes, Gridsum contains advertisements. However, you can permanently remove all ads with a one-time purchase, with no subscription or recurring charges.
Gridsum offers a wide range of difficulty tiers, starting from Tutorial and Beginner, progressing through Apprentice, Intermediate, Advanced, Expert, Veteran, Pro, Master, and Grandmaster levels.
The provided information does not specify if Gridsum can be played offline. However, features like the Daily Challenge and Global Leaderboard suggest an online component may be required for full functionality.
The latest version of Gridsum is 1.1.1, last updated on August 4, 2026. While specific update frequency isn't detailed, this indicates regular maintenance and improvements.
Gridsum is available for iPhone and iPod devices. It is designed for iOS users looking for a logic-based puzzle experience.
Gridsum has an age rating of 4+, making it suitable for younger players. The game focuses on logic and arithmetic, with no inappropriate content mentioned.
