# Number Sum - Math Puzzle Game

> Board

Canonical page: [https://chrome-stats.com/d/id6465898279](https://chrome-stats.com/d/id6465898279)

## Overview

- **ID:** `id6465898279`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Microjoy Games Limited
- **Category:** Board
- **Rating:** 4.60 / 5 (2,274 ratings)
- **Version:** 1.9.1
- **Last updated:** 2026-06-02
- **First published:** 2023-09-28
- **Size:** 270 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/number-sum-math-puzzle-game/id6465898279)
- **Website:** [https://microjoygame.com/](https://microjoygame.com/)
- **Privacy policy:** [https://microjoygame.com/privacy.html](https://microjoygame.com/privacy.html)

## Description

Number Sum - Math Puzzle Game is a fun and addictive puzzle that challenges your logic and arithmetic skills. Play on boards ranging from 3x3 to 8x8, with a minimal design and offline play. It's suitable for players of all ages who enjoy number puzzles or math games.

How to play: toggle between correct and delete modes, fill the grid so each row and column sums to the given targets, and use hints if you ever get stuck. Each level has a unique solution; enjoy hours of brain training with no time limits, free to play, and no internet required.

## Rankings

- #38,397 — Overall
- #74 — math

## Review summary

Reviewers generally praise the puzzle concept and relaxing, brain-boosting gameplay across many levels. The major drawbacks are pervasive ads (including for users who paid to remove them), crashes/freezes that reset progress, loading issues after updates, and a desire for more difficulty control or level selection. The core idea is solid, but performance and ad experience require significant fixes.

### Pros

- Fun, engaging number puzzle that keeps the mind sharp
- Relaxing gameplay with no time limit
- Many levels to play and progress through
- Brain-boosting math practice and mental calculation

### Cons

- Ads are intrusive and excessive (often between or even during games; long ads; appears even after paying for no ads)
- Crashes/freezes that reset progress and lead to reinstall/loose data; support often unresponsive
- Loading issues after updates (won’t load past the main screen)
- Levels become too easy or lack difficulty controls (desire for adjustable level selection or harder puzzles)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6465898279)