Free
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About
Crossed Sums is a number crossword: fill in the empty cells so that every equation, across and down, is correct. Equations cross each other, so every number you place has to work in two directions at once.
EASY TO LEARN, HARD TO PUT DOWN
• Tap a cell and pick a number, or drag it from the tray.
• Addition, subtraction, multiplication and exact division.
• When an equation doesn't add up, the cell gently lets you know. Nothing punishes you for trying.
• A one-minute tutorial teaches the basics in level 1.
150 LEVELS THAT GROW WITH YOU
From a single sum to full 5×5 grids, staircases and pinwheels with every operation. Each level has exactly one solution and is computer-verified.
EARN STARS
Solve with no hints and no mistakes to earn all 3 stars. Replay any level to beat your best.
DAILY CHALLENGE
A new board every day, from easy on Monday to expert on Sunday. Play daily to keep your streak and earn hints.
FAIR HINTS
Start with 3 hints and earn more by playing: one every 5 levels and one for each daily challenge. Out of hints? Watch an optional video to get another.
MADE TO RELAX
• Soft, colorful tiles, calm music and gentle sound effects.
• No timers and no account. Works offline.
• Settings for sound, music and haptics.
• VoiceOver support.
Crossed Sums is free and shows a few ads between levels. One purchase removes them forever.
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What's New in Crossed Sums
1.1
November 9, 2026
50 new levels, now 150 in all, with new board shapes. Game Center: achievements and leaderboards for stars and daily streaks. Plus, the game now speaks more than 40 languages.
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Subscriptions & In-App Purchases
$2.99
Remove Ads
Play with no ads between levels, forever.





