Mind Equation Puzzles
Kakuro & Matchstick Logic
Challenge your brain with Mind Equation Puzzles, a smart collection of Kakuro (Cross Sum) and Matchstick Logic puzzles designed to sharpen your reasoning, calculation, and problem-solving skills.
This app brings together two classic logic puzzle styles in one clean, focused experience—perfect for daily brain training or deep logical challenges.
Kakuro (Cross Sum) Puzzles
Fill the grid using numbers 1–9 so that each row and column adds up to the given sums.
No repeated numbers, no guessing—just pure logic.
- Carefully designed Kakuro grids
- Increasing difficulty from beginner to expert
- Improves calculation speed and logical thinking
Matchstick Puzzles
- Move, rotate, or remove matchsticks to fix equations and create correct statements.
- Creative equation-based challenges
- Encourages flexible thinking and insight
- Multiple solutions and clever tricks to discover
Why You’ll Love Mind Equation Puzzles
- Two logic puzzle types in one app
- Clean, distraction-free design
- Offline playable—no internet required
- Great for adults who enjoy math, numbers, and logic
- Ideal for short breaks or extended brain workouts
- Free to play
Perfect For
- Fans of Kakuro, Cross Sum, and number puzzles
- Players who enjoy matchstick puzzles and equation logic
- Anyone looking for meaningful brain training
Train your mind, sharpen your focus, and enjoy the satisfaction of solving elegant number puzzles.
Download Mind Equation Puzzles today and put your logic to the test!
I love this app. I love that it's free and I love that they keep adding puzzles.The only problem I have is that the bottom of the screen, where the "notes" buttons are, is being reclaimed by iOS. The 1 and 9 are cut off by the rounded edges, the 9 is taken over by a new pop up thing, the 4-5-6 have the new "swipe up to close" bar. It's getting harder and harder to use those.
Relaxing fun
D14m0nd qu33n
Great game for keeping the brain sharp. My arithmetic has improved greatly. I don't care how weird the scoring can be or whether I'm timed or not. I can always go back under stats and re-do a puzzle. A few had multiple answers but I don't expect perfection. It was only a few of them. I thought they were endless so I was disappointed to hit the end. Fortunately new puzzles are being created in a timely manner.
Great game
RCorwin
Played it about every day. Completed all 620 games. They get progressively more difficult which helps you develop your skill at the game. Enjoyed the game immediately before going to sleep at night. Found that when I began to have difficulty with a puzzle it was time to go to sleep, then could easily solve later the next day.
Easy to use
Space Pegasus
Tried several Kakuro games, and this is the best in my opinion. Been playing it for a few years. This version is easy to use. Visually clear. Well defined buttons. Have found no problems with it. LOVE that you continue to add puzzles!
* Added 5 new matchstick puzzles. Total is 85 puzzles.
* Added 10 new kakkuro puzzles. Total is 2550 puzzles.
* New Kakkuro and Matchstick puzzles are added regularly.
Version 1.240
The developer, Topleftsoft LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
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Data Linked to You
The following data may be collected and linked to your identity:
Location
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Data Not Linked to You
The following data may be collected but it is not linked to your identity:
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Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
