# jirafaGraph — A Musical Math Puzzle

> Musical math puzzle game where players reach target values using modular arithmetic. (iPhone/iPad app by Kyle McGrath.)

- Source: https://appshunter.io/ios/app/jirafagraph/id1448615051 (this page in markdown: same URL + `.md`)
- Developer: [Kyle McGrath](https://appshunter.io/developer/1448614900)
- Category: Games, Education, Puzzle, Strategy
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 89 MB
- Released: 2019-03-14
- Data updated: 2026-07-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/jirafagraph/id1448615051/reviews.md

## What is jirafaGraph?

It's a game of music and math. Play with headphones or external speaker for full experience. The player is given a current value and a target value. The goal is to attain the target value with the current value. You must do this 10 times to win a level.

We start a node, a value, and a target value. We can move from a node to any other connected node. When you move to a node you add the value associated with that node to your current value. This addition however is performed modulo some integer. Recall this is the remainder after dividing by the modulus. We use 12 as the canonical modulus, but the modulus starts at 3 to make the game easy for beginners. Tap and hold the upper left hand board to obtain a menu that allows you to choose more difficult puzzles. Start a new game after choosing a new puzzle set.

We use 12 as the canonical modulus for a reason. We assign each number 0, 1, 2, ..., 11 a musical note. In this way, the player not only creates a melody as they play, but also is able to hear the interval created between their current value and the target value.

## Key features

- Musical math puzzles
- Modular arithmetic gameplay
- Node-based value addition
- Melody creation
- Adjustable difficulty levels
- 10-step level progression


## Frequently asked questions about jirafaGraph

### What is jirafaGraph?

jirafaGraph is a musical math puzzle game where players reach a target value from a starting value by adding node values. The game uses modular arithmetic and assigns musical notes to numbers, allowing players to create melodies.

### How do you play jirafaGraph?

You are given a current value and a target value. By moving between connected nodes and adding their associated values (modulo an integer), you aim to reach the target value. Completing this 10 times wins a level.

### What is the modulus in jirafaGraph?

The game starts with a modulus of 3 for beginners and uses 12 as the canonical modulus. Each number from 0 to 11 is assigned a musical note, creating a melody as you play.

### Can I change the difficulty in jirafaGraph?

Yes, you can access a menu by tapping and holding the upper left-hand board to choose more difficult puzzles and start a new game with your selection.

### What devices does jirafaGraph support?

jirafaGraph is available on iPhone, iPad, and iPod devices.

### What is the age rating for jirafaGraph?

jirafaGraph has an age rating of 4+.

### When was jirafaGraph last updated?

The latest version, 6.12, was last updated on November 1, 2021.

### Does jirafaGraph have ads?

No, jirafaGraph does not contain advertisements.

## Version history (last 4 releases)

### 6.12 — 2021-11-01

Increase how smooth choosing a node is. Fix screen margins on newer iPhones.

### 6.04 — 2021-10-29

Minor bug fixes.

### 6.00 — 2021-10-25

English language, stability improvements, audio with speakers and headphones, tutorial with audio.

### 0.50 — 2019-03-12

No release notes.

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## More apps by Kyle McGrath

- [Writer's App](https://appshunter.io/ios/app/writers-app/id1590767432)

All apps by Kyle McGrath: https://appshunter.io/developer/1448614900

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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 2026-07-05.*