Sum45

Every row has a number. Every column has a number. The grid is full of tiles that don’t add up — yet. Swap two, and two sums change at once. Swap the right two, and everything clicks.

Modes

• Campaign — 135 hand-tuned levels across difficulty tiers, from a first 3×3 to grids that need real planning.
• Random — unlimited generated puzzles in 3×3, 4×4 and 5×5.
• Sum Rush — the same puzzle against a clock.
• Infinity — special tiles and combo mechanics for when the plain grid is too polite.

Hints are optional, achievements and Game Center leaderboards are in, and there’s a light and a dark theme. The core game is free and works offline, with no ads. A single in-app purchase unlocks everything.

Available on iPhone, iPad, Mac (Apple silicon) and Apple Vision Pro.