---
title: "NumSum: Sum Puzzle & Sudoku - Reviews, Revenue and Downloads in Malta | Apple App Store"
description: "NumSum is the addictive number puzzle that trains your brain in minutes a day.  Cross out the right cells so every row, column, and colored region adds up to its target sum. Easy to learn. Hard to put"
---

# NumSum: Sum Puzzle & Sudoku — Malta
> Brain Training Math Game

![NumSum App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/30/90/bc/3090bc60-cbc9-a3b5-5fc2-6abd0c88ba8e/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png)

**Developer:** [KOSUKE ARAKI](https://apptail.io/developer/kosuke-araki-BEjGqb)
**Category:** Games
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.akg.numsum
**Store:** Apple App Store
**Country:** Malta
**Version:** 1.0 (released 2026-06-02)
**Original Release:** 2026-06-01
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/mt/app/app/id6774464888)
**AppTail Page:** [https://apptail.io/app/numsum-sum-puzzle-sudoku-fhmA/malta](https://apptail.io/app/numsum-sum-puzzle-sudoku-fhmA/malta)

## NumSum Description
NumSum is the addictive number puzzle that trains your brain in minutes a day.

Cross out the right cells so every row, column, and colored region adds up to its target sum. Easy to learn. Hard to put down.

If you love Sudoku, Killer Sudoku, Sumdoku, or Kakuro — NumSum is your next obsession.

WHY PLAYERS LOVE NUMSUM
- Quick brain training — solve a puzzle in 5 minutes
- Three grid sizes: 5x5, 6x6, and 8x8
- Logic + light arithmetic — no advanced math needed
- Clean, calm, distraction-free design
- 100% offline — play on planes, trains, anywhere
- No ads, no in-app purchases, no sign-up

HOW TO PLAY
1. Each row, column, and colored region shows a target sum.
2. Tap cells to eliminate them.
3. The remaining numbers must add up to the target.
4. Solve every row, column, and region to win.

PERFECT FOR FANS OF
Sudoku, Killer Sudoku, Sumdoku, Kakuro, Number Match, Sumplete, Picross, Nonograms, and other logic and math puzzle games.

GOOD FOR YOUR BRAIN
NumSum sharpens logical thinking, mental math, focus, and pattern recognition. A few minutes a day is a relaxing way to stay sharp.

THREE DIFFICULTY LEVELS
- 5x5 — warm up, perfect for beginners
- 6x6 — the daily-puzzle sweet spot
- 8x8 — for puzzle masters who want a real challenge

100% FREE. NO ADS. NO TRACKING.
NumSum is built by a small team that hates ads as much as you do. There are no banners, no pop-ups, no paywalls. Just puzzles.

Sharpen your mind. One puzzle at a time.
Download NumSum and join thousands of puzzle lovers worldwide.

## NumSum Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/75/55/77/7555776f-83aa-2dc7-a80a-31a25dbff29a/6.7_inch_iPhone_01_title.png/1290x2796.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/59/59/bf/5959bf4f-7c14-0f96-dd5f-67512a1281f4/6.7_inch_iPhone_02_gameplay.png/1290x2796.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/88/29/0a/88290a2e-2676-2bad-4dd0-b26b05b9168d/6.7_inch_iPhone_03_settings.png/1290x2796.png)






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---

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