Kakuro: Number Crossword

In-app purchases
4.8
6.76K reviews
100K+
Downloads
Content rating
PEGI 3
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About this game

Fill empty squares so each block sums up to the number on its left or on its top. Each puzzle consists of a blank grid with sum-clues in various places. The object is to fill all empty squares using numbers 1 to 9 so the sum of each horizontal block equals the clue on its left, and the sum of each vertical block equals the clue on its top. In addition, no number may be used in the same block more than once.

Kakuro are addictive logic puzzles best described as number-crosswords. Using pure logic and simple add/subtract calculations, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.

The game includes zoom for easier solving of large puzzles, as well as helpful features such as showing possible sum combinations in a block, showing the sum remainder of a block, and using pencilmarks to make temporary placement of numbers in the grid.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Kakuro contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week.

PUZZLE FEATURES

• 200 free Kakuro puzzles
• Extra bonus puzzle published free each week
• Multiple difficulty levels from very easy to extremely hard
• Grid sizes up to 22x22
• Also includes 5-grid Samurai Kakuro
• Puzzle library continuously updates with new content
• Manually selected, top quality puzzles
• Unique solution for each puzzle
• Hours of intellectual challenge and fun
• Sharpens logic and improves cognitive skills

GAMING FEATURES

• No ads
• Unlimited check puzzle
• Unlimited hints
• Show errors during gameplay
• Unlimited Undo and Redo
• Pencilmarks feature for solving hard puzzles
• Autofill pencilmarks mode
• Show Sum Combinations feature
• Show Sum Remainder feature
• Concurrently playing and saving multiple puzzles
• Puzzle filtering, sorting and archiving options
• Dark Mode support
• Graphic previews showing puzzles progress as they are being solved
• Enlarge, reduce, move puzzle for easy viewing
• Portrait and landscape screen support (tablet only)
• Track puzzle solving times
• Backup & restore puzzle progress to Google Drive

ABOUT

Kakuro have also become popular under other names such as Kakkuro, Cross Sums and Tashizan Cross. Similar to Sudoku, Hashi and Slitherlink, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.
Updated on
Oct 8, 2025
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

4.8
5.79K reviews
Jared Yates Decker
April 15, 2025
The interface is really easy to use and the (optional) clues it provides makes control over the simplicity really elegant. The method of tracking possible options is totally intuitive and the instructions for beginners is very comprehensive. These guys really know how to make puzzle games!
5 people found this review helpful
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Parag Dalal
December 13, 2025
Fantastic App. I have had their Level 1 book for many years and finally completed all the puzzles in it. Not a single mistake in that book with more than 100 very large puzzles. So I was looking for something similar and found it! Went straight for the hardest and largest puzzle in the app and am halfway through it. Needed one hint. All this is to say, the puzzle is precise, hints are on point and all the reviews blaming the app are user mistakes. Very high quality app!
1 person found this review helpful
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Karen Pearson
March 30, 2022
Excellent game. I always liked it on paper but the app is better and I am addicted. I ran out of free puzzles and actually paid for more puzzles. I NEVER pay for anything in an app, so that says something. I like that you can check for errors. The only suggestion I can make is that it would be nice if there was an option to solve a single square or get a hint. Sometimes I get stuck on a tough one.
15 people found this review helpful
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Conceptis Ltd.
April 3, 2022
Thank you for your feedback. We are currently working on a hinting system for our apps. We already released this feature on the Fill-a-Pix app and the next ones in line is our Sudoku app. We hope to include this feature in the Kakuro app as well as soon as we can.

What’s new

This version improves performance and stability.