# Number Sum Puzzle - Math Game — Kakuro-Style Brain Teaser Game

> Logic number sum puzzle game with handcrafted grids and no timers. (iPhone/iPad app by LIHUHU PUBLISHING PTE. LTD..)

- Source: https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322 (this page in markdown: same URL + `.md`)
- Developer: [LIHUHU PUBLISHING PTE. LTD.](https://appshunter.io/developer/1732214108)
- Category: Games, Education, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.20/5 from 5 App Store ratings · 5 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.1 · 62 MB
- Languages: American English
- Released: 2026-04-13
- Data updated: 2026-08-28
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322/reviews.md

## What is Number Sum Puzzle?

Challenge your brain with Sum Puzzle — the addictive number sums math puzzle loved by fans of Sudoku, Kakuro, and Nonogram. Remove numbers from the grid so the remaining values in each row and column add up exactly to the target sums on the edges. Simple rules. Infinite "aha!" moments.

Every puzzle is handcrafted with one unique solution. No timers. No pressure. No mid-puzzle ads. Just pure logic and mental math — the perfect brain game for puzzle lovers who want a calm, focused challenge.

HOW TO PLAY SUM PUZZLE
• Each grid shows numbers with target sums displayed along the right side and the bottom.
• Tap the check button to circle a number (marks it as kept in the sum).
• Tap the erase button to remove a number from the grid.
• Your goal: make every row and every column reach its exact target sum at the same time.
• Every puzzle has one — and only one — correct solution. Can you find it?

It sounds simple, but the deeper you go, the more you'll appreciate the elegant logic behind every layout. Start with a 3x3 warm-up, work your way to a 10x10 boss-level grid, and feel your mental math sharpen along the way.

KEY FEATURES
• Levels for Everyone — From quick 3x3 grids for complete beginners to sprawling 10x10 challenges for seasoned math puzzle experts.
• Daily Brain Workout — Make it a daily habit. Sharpen focus, arithmetic speed, and pattern recognition a few minutes at a time.
• Zero Mid-Puzzle Ads — We respect your concentration. Solve in peace. No interstitials pop up to break your flow.
• Fully Offline — Play anywhere, anytime. No internet, no account, no sign-in. Perfect for flights, subways, and waiting rooms.
• Dark-Mode Friendly — Sleek, minimalist design that's easy on the eyes day or night. Perfect for late-night brain training.
• Handcrafted Puzzles — Every single level is hand-designed and verified for a unique, elegant solution. No auto-generated filler.
• Endless Replay Value — Hundreds of logic puzzles with more added in regular updates.

WHY YOU'LL LOVE SUM PUZZLE
• Relax and Sharpen Your Mind — Stress-free gameplay built for calm focus. No timers. No streak shaming. No pay-to-win. Just pure logic.
• Improve Mental Math — A natural workout for arithmetic speed, logical deduction, and pattern recognition. A real brain game, not a gimmick.
• The Ultimate "Aha!" Moment — Feel that satisfying click when every number finally locks into place.
• The Perfect Commute Companion — Fully offline puzzles for planes, trains, subways, and waiting rooms. No signal needed.
• Kid-Friendly and Adult-Approved — Great for students learning arithmetic and adults looking for a mindful screen break.

LOVE SUDOKU, KAKURO, OR NONOGRAM?
If you enjoy logic puzzles like Sudoku, Kakuro (a.k.a. cross sums), or Nonogram, Sum Puzzle will feel instantly familiar — but with a fresh twist. It's the math puzzle game you didn't know you needed: simpler to learn than Kakuro, more satisfying than endless Sudoku grids, and more portable than pen and paper.

WHO IT'S FOR
• Puzzle lovers hunting for a fresh daily brain game
• Students practicing mental math and arithmetic
• Adults looking for a relaxing, screen-time-worthy brain workout
• Commuters who want a real offline puzzle game
• Sudoku and Kakuro fans searching for their next number puzzle obsession

Whether you want a serious math challenge or a relaxing way to unwind, Sum Puzzle makes every number count. Every solve is a small victory for your brain.

Download Sum Puzzle now — your next favorite number sums math puzzle game is waiting. No ads interrupt your solve. No internet required. Just logic, numbers, and your next "aha!" moment.

--------------------
■ Terms of Use
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By downloading or using this app, you agree to our Terms of Use (End User License Agreement). This app uses Apple's standard EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Number sum grid puzzles
- Handcrafted unique solutions
- No timers or pressure
- Offline play
- Daily brain workout
- Dark mode support

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Starter Hints | $1.99 | one-time |
| Value Hints | $5.99 | one-time |
| Mega Hints | $9.99 | one-time |
| VIP - No Ads | $19.99 | one-time |
| VIP - No Ads | $49.99 | one-time |


## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322/reviews.md

### 1/5 — バグ

*2026-08-22*

200問を超えたくらいから広告がやたらに増えた
そして新規の問題が最初から解答されているような見た目になり操作が効かなくなった
課金しなくて良かった

### 4/5 — 広告無しではない

*2026-08-18*

広告一切無しではありません！

### 1/5 — Doesn't work!  Freezes!

*2026-07-05*

Ads work but app doesn't even work.  Downloaded it, tried it, deleted it.  Then decided to try again.  Still doesn't work at all.  Really disappointed!

### 4/5 — 広告少なめ

*2026-06-16*

操作性は普通で、広告はクリア後だけなので、やりやすいです。

**Developer response:** レビューありがとうございます！😊
広告が少なく、快適にプレイできると感じていただけて嬉しいです。これからも遊びやすく楽しいアプリを目指して改善を続けてまいります。今後ともよろしくお願いいたします！

### 5/5 — Very well done. Fabulous Developer

*2026-06-12*

The program has a variety of levels. Some are easy and some are very challenging. I love the variety. On top of that, the developer is incredibly responsive. That is very important to me.  I mentioned to him that another app I was using had a feature where all the bad numbers would disappear after I selected all the correct ones. Within days that option was here.  I highly recommend you try it.

**Developer response:** Dear Mr Dana, thank you so much for your supportive feedback and a lot of great suggestions via direct email. I am happy to see that you enjoy the game - Hung

## Frequently asked questions about Number Sum Puzzle

### What is Number Sum Puzzle?

Number Sum Puzzle is a logic game where you arrange numbers in a grid so that the sum of each row and column matches the target numbers. It's designed to be a relaxing yet challenging brain workout.

### Does Number Sum Puzzle have ads?

Yes, Number Sum Puzzle contains advertisements. This allows the game to be offered for free to players.

### Can I play Number Sum Puzzle offline?

Yes, Number Sum Puzzle is fully playable offline. You can enjoy the puzzles anywhere, anytime, without needing an internet connection.

### How difficult are the puzzles in Number Sum Puzzle?

The difficulty varies, with levels ranging from quick 3x3 grids for beginners to 10x10 challenges for experienced players. Every puzzle is handcrafted with a unique solution.

### What makes Number Sum Puzzle different from Sudoku or Kakuro?

While similar to logic puzzles like Sudoku and Kakuro, Number Sum Puzzle offers a fresh twist with its unique number sum mechanic. It aims to be simpler to learn than Kakuro and more satisfying than endless Sudoku grids.

### Is Number Sum Puzzle suitable for kids?

Yes, Number Sum Puzzle is described as kid-friendly and adult-approved. It can help students learning arithmetic and adults seeking a mindful break.

### How often is Number Sum Puzzle updated?

The app is updated regularly, with more handcrafted logic puzzles being added to provide endless replay value.

### What devices can I play Number Sum Puzzle on?

Number Sum Puzzle is available on iPhone and iPod devices.

## Version history (last 5 releases)

### 1.4.2 — 2026-08-20

New update: cleaner dark mode, handcrafted puzzles, and still zero mid-puzzle ads.

### 1.4.1 — 2026-08-17

Version 1.0 Launch

We're excited to introduce TOEIC Mastery - your complete companion for TOEIC test preparation.

NEW FEATURES:
• Complete Part 1-7 problem bank with detailed explanations
• Full-length mock exams in authentic TOEIC format
• AI weak point drills targeting your specific learning gaps
• Listening enhancement module with variable speeds
• Score prediction system for 730, 860, 900 targets
• Real-time progress tracking and analytics
• Personal vocabulary builder
• Offline study mode

Thank you for choosing TOEIC Mastery. We're committed to continuous improvement - watch for regular content updates and new practice materials.

### 1.4.0 — 2026-07-21

New update: handcrafted puzzles, polished ui, and zero mid-puzzle adverts. Sharpen your mental maths offline, anywhere.

### 1.3.9 — 2026-07-15

New update: handcrafted puzzles, polished ui, and zero mid-puzzle adverts. Sharpen your mental maths offline, anywhere.

### 1.3.8 — 2026-07-11

New update: handcrafted puzzles, polished ui, and zero mid-puzzle adverts. Sharpen your mental maths offline, anywhere.

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All apps by LIHUHU PUBLISHING PTE. LTD.: https://appshunter.io/developer/1732214108

## Related topics

[number sums](https://appshunter.io/ios/topics/number-sums)

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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 2026-08-28.*