# Cross Sum Mania — Challenging Number Puzzle

> Logic puzzle game with overlapping equations using digits 1-9. (iPhone/iPad app by Gilbert Gonsalves.)

- Source: https://appshunter.io/ios/app/cross-sum-mania/id6670564521 (this page in markdown: same URL + `.md`)
- Developer: [Gilbert Gonsalves](https://appshunter.io/developer/492123194)
- Category: Games, Education, Puzzle, Strategy
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 4 MB
- Languages: English
- Released: 2024-09-26
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cross-sum-mania/id6670564521/reviews.md

## What is Cross Sum Mania?

A Cross Sum puzzle consists of 6 overlapping equations, 3 horizontal equations and 3 vertical equations.   Each equation consists of three digits and two operations.  The solution to each equation is given. To solve the puzzle you must complete each equation.  The digits 1-9 are used ONLY ONCE in every puzzle. This game is more challenging than you might think.  It's fun and it's FREE!

## Key features

- Overlapping horizontal and vertical equations
- Uses digits 1-9 once per puzzle
- Requires completion of all equations
- Challenging logic gameplay
- Free to play


## Frequently asked questions about Cross Sum Mania

### What is Cross Sum Mania?

Cross Sum Mania is a free number puzzle game where players complete overlapping equations using digits 1-9. It challenges your logic and arithmetic skills.

### How do you play Cross Sum Mania?

You must fill in the missing digits and operations in both horizontal and vertical equations so that all equations are correct. Each digit from 1-9 can only be used once per puzzle.

### Is Cross Sum Mania free to play?

Yes, Cross Sum Mania is completely free to play. There are no in-app purchases or advertisements.

### What devices does Cross Sum Mania support?

Currently, Cross Sum Mania is available on iPhone.

### What is the age rating for Cross Sum Mania?

Cross Sum Mania has an age rating of 4+, making it suitable for a wide range of players.

### How often is Cross Sum Mania updated?

The latest version was released on 2025-09-25, indicating recent development and support for the game.

### What makes Cross Sum Mania challenging?

The challenge comes from the overlapping nature of the equations and the constraint of using each digit from 1-9 only once per puzzle.

### Can I play Cross Sum Mania offline?

The provided information does not specify offline play capabilities, but puzzle games of this nature are often playable without an internet connection.

## Version history (last 5 releases)

### 1.6 — 2025-09-25

Fixed Issue with Winning View Showing Improperly

### 1.5 — 2024-12-21

The issue with the app not functioning properly in dark mode has been resolved.

### 1.4 — 2024-12-16

Fixed stats screen overlap

### 1.3 — 2024-11-14

Fixed but when Hint is pressed and active cell occupied.

### 1.2 — 2024-10-16

Fixed bug with hint digit appearing twice

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## More apps by Gilbert Gonsalves

- [Guess da Word](https://appshunter.io/ios/app/guess-da-word/id6502470102)
- [Guess the Equation](https://appshunter.io/ios/app/guess-the-equation/id6503984605)
- [Cryptogram Mania](https://appshunter.io/ios/app/cryptogram-mania/id6587549325)
- [Jumble Pun Fun](https://appshunter.io/ios/app/jumble-pun-fun/id6739000275)
- [Nim Challenge](https://appshunter.io/ios/app/nim-challenge/id6742116085)

All apps by Gilbert Gonsalves: https://appshunter.io/developer/492123194

## Related topics

[gilbert gonsalves](https://appshunter.io/ios/topics/gilbert-gonsalves)

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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 2026-06-04.*