# Simple Diagram - Guitar Scale

> Interactive guitar scale and note visualization tool for learning. (iPhone/iPad app by Shintaro Aoki.)

- Source: https://appshunter.io/ios/app/simple-diagram-guitar-scale/id1562496024 (this page in markdown: same URL + `.md`)
- Developer: [Shintaro Aoki](https://appshunter.io/developer/1559687889)
- Category: Music, Entertainment
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 14.4 · 5 MB
- Languages: English, Japanese
- Released: 2021-04-11
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/simple-diagram-guitar-scale/id1562496024/reviews.md

## What is Simple Diagram?

- Very simple guitar scale diagram.
- You can understand the scale notes by the keyboard and fretboard.
- You can filter out unwanted notes or add notes you need.
- Also useful to learn the chord tones.
- Tap the fingerboard to check the note sounds.
- You can add the scales very easy.
- You can switch the display the intervals or the note names.
- You can display the fretboard for lefty.

## Key features

- Interactive fretboard and keyboard diagrams
- Customizable note selection
- Chord tone learning
- Note sound playback
- Left-handed display option
- Interval or note name display


## Frequently asked questions about Simple Diagram

### What is Simple Diagram?

Simple Diagram is a tool that helps you visualize guitar scales using interactive fretboard and keyboard diagrams. You can see scale notes, filter them, and even hear the note sounds.

### Can Simple Diagram help me learn chords?

Yes, Simple Diagram is useful for learning chord tones by visualizing how they fit within scales on the fretboard and keyboard.

### Does Simple Diagram support left-handed guitarists?

Yes, Simple Diagram offers a specific display option for left-handed players, making it accessible for everyone.

### Can I customize the notes shown in Simple Diagram?

Absolutely. You can filter out unwanted notes or add specific notes you need to create custom scale diagrams.

### What information does Simple Diagram display for notes?

You can choose to display either the intervals or the note names for each note on the fretboard and keyboard diagrams.

### How often is Simple Diagram updated?

The app was last updated on June 24, 2021, with version 1.0.7. Further update frequency is not specified.

### What is the age rating for Simple Diagram?

Simple Diagram has an age rating of 4+, making it suitable for a wide range of users.

### What devices is Simple Diagram available on?

Based on the provided data, Simple Diagram is a mobile application, implying availability on iOS and Android devices.

## Version history (last 1 release)

### 1.0.7 — 2021-06-24

- Corrected a very light text.

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## More apps by Shintaro Aoki

- [Fretboard Master - Guitar/Bass](https://appshunter.io/ios/app/fretboard-master-guitarbass/id1559687887)
- [Chord Metronome - for Singer](https://appshunter.io/ios/app/chord-metronome-for-singer/id1561782853)
- [Circle of Fifth - Light](https://appshunter.io/ios/app/circle-of-fifth-light/id1565836176)
- [Circle of Fifth - Full Size](https://appshunter.io/ios/app/circle-of-fifth-full-size/id1569969726)

All apps by Shintaro Aoki: https://appshunter.io/developer/1559687889

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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 2026-07-07.*