GridSum App

Can you turn the entire grid green?

GridSum is a clean, satisfying number puzzle where logic and intuition combine. Your goal: rearrange the numbers so every row and column adds up correctly.

How to Play

• Swap any two tiles

• Each row must sum to its last cell

• Each column must do the same

• When everything checks out, the whole grid turns green!

Why You’ll Love GridSum

• Quick to learn, challenging to master

• 20 handcrafted difficulty levels

• Stats tracking: best time, best moves, win rate

• “Give Up” shows the correct solution — never stay stuck

• No ads, no timers, just focused gameplay

Whether you’re a puzzle fan, a math mind, or just someone who loves a daily logic boost, GridSum offers endlessly replayable fun.

Download now and see how fast you can add it all up!