# Mind Equation Puzzles — Kakuro & Matchstick Logic

> Kakuro and matchstick logic puzzles for brain training and problem-solving. (iPhone/iPad app by Topleftsoft LLC.)

- Source: https://appshunter.io/ios/app/mind-equation-puzzles/id1066927302 (this page in markdown: same URL + `.md`)
- Developer: [Topleftsoft LLC](https://appshunter.io/developer/452754001)
- Category: Games, Education, Casual, Puzzle
- Price: Free
- Rating: 4.06/5 from 86 App Store ratings · 44 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 10 MB
- Languages: English, Japanese
- Released: 2016-01-02
- Data updated: 2026-09-13
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/mind-equation-puzzles/id1066927302/reviews.md

## What is Mind Equation Puzzles?

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!

## Key features

- Kakuro (Cross Sum) puzzles
- Matchstick logic puzzles
- Daily brain training
- Offline play
- Increasing difficulty levels
- Distraction-free design

## Recent user reviews (10 of 44)

All indexed reviews: https://appshunter.io/ios/app/mind-equation-puzzles/id1066927302/reviews.md

### 4/5 — 物足りない

*2026-07-31*

まだまだ問題出しまくって欲しい

### 4/5 — 1379、2434、2511-2520

*2026-06-23*

1379の左下3段
1752
4231
31

でも成り立ちませんか？
どこ間違ってるのかなあ

2434
左下の表示数字、22→21の間違いですよね

2511-2520
今回の問題はどれもロジカルで美しくて解いていて楽しかったです。これぞカックロ。おかげでサクサク解けてしまってすぐ終わってしまいましたがｗ

ちなみにマッチ棒クイズはタップしても開けた事がありません。

### 1/5 — Problem with  2492

*2026-06-21, version 1.237*

I love the game but unless you fix the problem with 2492, I can’t advance!

### 5/5 — Love it but small problem

*2026-05-24*

The new puzzle 2492 is impossible to solve. It requires a sum of 23 in 7 digits but the absolute minimum of 7 digits is 28. Solving the puzzle for a sum of 28 works, it appears to be a typo.

### 5/5 — 継続して問題追加してるのは素晴らしい

*2026-05-23*

楽しく遊んでますが、広告がイラつきます。カットつけてくれたら買います。1000円くらいまでなら買います。
最近の更新で、新しく追加する問題の得点の付け方が変わりましたか？
それまでの問題よりも低得点になりました。普通は難易度高いのでより高得点が出るようにするもんだと思います。

2026年1月追記
更新で問題番号が上二桁しか見れなくなりました。4桁の上二桁では特定の問題にたどり着くのは困難です。
改悪になってしまってるので戻して欲しいです。

2434番の左下の22横列が合計21になります。

2492番、真ん中の横7マスが23になってますが28の間違いです。横7マスでは23は作れません。

### 5/5 — 満足

*2025-11-19*

点数でソートする機能ができたらとても嬉しい

### 5/5 — Easy to use

*2025-03-30*

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!

### 1/5 — Ads every 2 seconds

*2024-01-31*

This game used to be very good, but now there are ads constantly every couple of seconds during the game - makes the game very unplayable. There are even ads for this game during the game - pretty stupid. Good example of greedy developers ruining a game.

### 1/5 — Ads while playing are evil

*2024-01-20*

I loved this game for years.  The ads in between puzzles are not a big deal, but now they’ve added adds in the middle of the game ?  I can’t stand it so I have to delete the app.  It’s not playable.

### 1/5 — Ads!

*2023-10-13*

Please offer a no ads purchase. This is the only issue with the game and the slightly annoying hidden 9 on the mobile version.

## Frequently asked questions about Mind Equation Puzzles

### What kind of puzzles are included in Mind Equation Puzzles?

This app features two classic logic puzzle types: Kakuro (also known as Cross Sum) and Matchstick Logic puzzles. Kakuro puzzles involve filling grids with numbers that add up to given sums, while Matchstick puzzles require you to rearrange matchsticks to solve equations.

### How does the app help with brain training?

The puzzles are designed to sharpen your reasoning, calculation, and problem-solving skills. Kakuro puzzles improve calculation speed and logical thinking, while matchstick puzzles encourage flexible thinking and insight through creative equation challenges.

### Is Mind Equation Puzzles free to play?

Yes, the app is free to play. It offers a clean, distraction-free design and can be played offline, meaning no internet connection is required.

### Who is the target audience for this app?

This app is ideal for adults who enjoy math, numbers, and logic. It's perfect for fans of Kakuro, Cross Sum, number puzzles, and matchstick puzzles, as well as anyone looking for meaningful brain training.

### Can I play Mind Equation Puzzles offline?

Absolutely. One of the key benefits of Mind Equation Puzzles is that it is playable offline. You can enjoy the Kakuro and Matchstick logic puzzles anytime, anywhere, without needing an internet connection.

## Version history (last 5 releases)

### 1.243 — 2026-09-11

* Added 5 new matchstick puzzles. Total is 100 puzzles.
* Added 10 new kakkuro puzzles.  Total is 2580 puzzles.
* New Kakkuro and Matchstick puzzles are added regularly.

### 1.242 — 2026-08-28

* Added 5 new matchstick puzzles. Total is 95 puzzles.
* Added 10 new kakkuro puzzles.  Total is 2570 puzzles.
* New Kakkuro and Matchstick puzzles are added regularly.

### 1.241 — 2026-08-14

* Added 5 new matchstick puzzles. Total is 90 puzzles.
* Added 10 new kakkuro puzzles.  Total is 2560 puzzles.
* New Kakkuro and Matchstick puzzles are added regularly.

### 1.240 — 2026-07-31

* 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.

### 1.239 — 2026-07-17

* Added 5 new matchstick puzzles. Total is 80 puzzles.
* Added 10 new kakkuro puzzles.  Total is 2540 puzzles.
* New Kakkuro and Matchstick puzzles are added regularly.

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All apps by Topleftsoft LLC: https://appshunter.io/developer/452754001

## Related topics

[kakuro puzzles](https://appshunter.io/ios/topics/kakuro-puzzles) · [kakuro rally](https://appshunter.io/ios/topics/kakuro-rally)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*