# Scale Master Guitar & Bass — Fretboard, Modes & Theory

> Fretboard, Modes & Theory (iPhone/iPad app by Romeu Beato.)

- Source: https://appshunter.io/ios/app/scale-master-guitar-and-bass/id6746448058 (this page in markdown: same URL + `.md`)
- Developer: [Romeu Beato](https://appshunter.io/developer/1801192254)
- Category: Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 103 MB
- Languages: American English
- Released: 2025-09-02
- Data updated: 2026-07-19
- User reviews in markdown: https://appshunter.io/ios/app/scale-master-guitar-and-bass/id6746448058/reviews.md

## What is Scale Master Guitar & Bass?

Scale Master Guitar is the comprehensive fretboard learning app designed to help guitarists master scales, understand music theory, and improve their playing through interactive visualization and audio training.

INTERACTIVE FRETBOARD VISUALIZATION
Visualize scale patterns across the entire guitar neck with our advanced fretboard display. See exactly where to place your fingers for any scale or mode, with clear visual indicators and multiple position patterns. The interactive chromatic wheel provides an intuitive understanding of note relationships and harmonic theory.

COMPREHENSIVE SCALE LIBRARY
Access a complete collection of essential guitar scales including major, minor, pentatonic, blues, and exotic scales. Master all seven modes - Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, and Locrian. Each scale includes multiple fingering patterns and positions across the fretboard for complete mastery.

CHORD PROGRESSION PLAYER
Build and practice custom chord progressions with high-quality audio playback. The integrated sequencer provides piano and bass accompaniment, helping you understand harmonic context while developing your chord knowledge. Practice with adjustable tempo and seamless looping functionality.

ADVANCED AUDIO ENGINE
Professional SoundFont-based audio system delivers studio-quality playback for all instruments. Real-time audio feedback helps develop your ear training while the built-in metronome keeps you in perfect time during practice sessions. 

MUSIC THEORY INTEGRATION
Understanding guitar theory becomes simple with visual learning tools that connect scale patterns to musical concepts. See how scales relate to chord construction and harmonic progressions, making complex theory accessible to players at every level.


PREMIUM FEATURES
Unlock the complete Scale Master Guitar experience with premium access including all scales and modes, full audio playback capabilities, progression saving functionality, downloadable fretboard diagrams, and an ad-free learning environment.

PERFECT FOR ALL LEVELS
Whether you're a beginner learning your first scales or an advanced player exploring exotic modes, Scale Master Guitar adapts to your skill level. Music teachers use our visual tools to demonstrate concepts clearly, while students benefit from the interactive learning approach.

KEY BENEFITS
Learn scales faster through visual pattern recognition. Develop better fretboard knowledge with comprehensive position training.
Improve improvisation skills by understanding scale relationships. Practice chord progressions with professional backing tracks.
Master music theory through interactive exploration.

Transform your guitar playing with Scale Master Guitar - the essential tool for serious musicians.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Subscription | $3.99 | per month |
| Pro Yearly | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade to Premium | $24.99 | one-time |



## Version history (last 5 releases)

### 1.2.9 — 2026-07-16

Tonic as Universal Bass Note is now free for all users and enabled by default
Added Barry Harris modes (Major & Minor 6th Diminished)
Improved fretboard color editing — tap a dot to change its color without removing it
Chord tap feedback and haptic response on chromatic wheel
Smoother mode-switch animations
Bug fixes and performance improvements

### 1.2.8 — 2026-04-28

We've completely reworked how drone chords are voiced in the Player page. Drones now feature a wider, more musical voicing with proper bass separation, placing the root in a low octave and chord tones in a clear mid-range register instead of clustering all notes together. Chords with sharps and flats now play all their notes correctly, and the drone automatically updates to match your current scale, mode, and key selection every time you enter the Player page.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.freeprivacypolicy.com/live/1aa842ea-08bc-4f4b-8ea6-5d5656398774

### 1.2.7 — 2026-04-22

Fixed a bug where changing the key on the chromatic wheel could show the wrong scale — for example, selecting B would display C major instead. All keys now correctly update the fretboard and keyboard display.

### 1.2.6 — 2026-04-15

Bug fix: Resolved an issue where changing the key on the chromatic wheel would display the wrong scale on the fretboard and keyboard (off by one semitone), particularly noticeable when switching between different scale types.

### 1.2.5 — 2026-04-14

Improved RiffRoutine account linking — now clearly shows when your web subscription is active or expired
Polyrhythmic Metronome now available in cross-app recommendations
Updated subscription pricing
Bug fixes and improvements

## More apps by Romeu Beato

- [MeditNation: AI Meditation](https://appshunter.io/ios/app/meditnation-ai-meditation/id6743081215)
- [Guitar Progression Generator](https://appshunter.io/ios/app/guitar-progression-generator/id6747004878)
- [Ear'n'Play: Ear Training](https://appshunter.io/ios/app/earnplay-ear-training/id6749683780)
- [PolyRhythmic Metronome](https://appshunter.io/ios/app/polyrhythmic-metronome/id6760353853)

All apps by Romeu Beato: https://appshunter.io/developer/1801192254

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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 2026-07-19.*