# Fretlight — Guitar Fretboard Mastery

> Guitar Fretboard Mastery (iPhone/iPad app by Sean Tollefsen Sinclair.)

- Source: https://appshunter.io/ios/app/fretlight/id6760599523 (this page in markdown: same URL + `.md`)
- Developer: [Sean Tollefsen Sinclair](https://appshunter.io/developer/1885234602)
- Category: Music, Education
- Price: $3.99
- Age rating: 4+
- Requires: iOS 15.0 · 143 MB
- Languages: American English
- Released: 2026-03-29
- Data updated: 2026-08-16
- User reviews in markdown: https://appshunter.io/ios/app/fretlight/id6760599523/reviews.md

## What is Fretlight?

Learn the guitar fretboard with focused drills, interactive theory, and practical tools for understanding notes, intervals, chords, modes, progressions, rhythm, and ear training.

Fretlight is built for guitarists who want real fretboard fluency: knowing where the notes are, how music theory maps onto the neck, and why the shapes you play actually work. Instead of a video course or a subscription library, Fretlight gives you a clean practice space for building the skills you use every time you pick up the guitar.

Practice with targeted drills:
- Note Finder: learn every note on every string
- Intervals: identify the distance between notes
- Chord Builder: build chords from their interval formulas
- Triad Builder: practice triads and inversions across the neck
- Mode ID: recognize the 7 modes by their notes
- Progressions: connect chords to scale degrees and harmonic function

Use built-in tools:
- Fretboard Explorer: tap the neck to hear and locate notes
- Rhythm Trainer: strengthen your internal clock
- Ear Training: identify notes by pitch
- Metronome: practice with tap tempo and time signature control

Study theory visually:
- Modes
- Chords
- Keys
- Triads
- Circle of Fifths
- CAGED System

Every reference is designed around the guitar neck, with interactive fretboard diagrams and playable examples that help theory become something you can see, hear, and use.

Customize the app for the way you play:
- Standard, Drop D, D Standard, Open G, Open E, and DADGAD tunings
- Left-handed mode
- Reversible string order
- Optional string numbers
- Fretboard skins
- Adjustable sound type
- Haptic feedback
- Daily practice reminders

Fretlight is for beginners building their first reliable map of the fretboard, and for intermediate players who want chords, modes, triads, and progressions to feel less abstract. Open the app, choose a drill, and build the kind of fretboard knowledge that makes practice, improvisation, songwriting, and learning songs easier.

## Chart rankings

- #189 in Top Paid · Music (US App Store)


## Version history (last 4 releases)

### 1.3 — 2026-04-26

Major updates:
- New Tools tab with Fretboard Explorer, Rhythm Trainer, Ear Training, and Metronome in one dedicated place.
- New Keys theory section to help you understand key signatures, diatonic chords, and how notes relate across the fretboard.
- Improved chord theory diagrams with corrected voicings for major, minor, diminished, augmented, sus, add9, and 7th chords across all 12 roots.

Minor changes:
- Improved fretboard visibility and layout across theory pages.
- Redesigned intervals reference for clearer learning.
- Audio playback improvements, including better support when the device is in silent mode.
- General UI polish and stability improvements.

### 1.2 — 2026-04-09

Major updates: 
- The note finder now challenges you to find the note on all strings, I've made this change because it's a much better way to learn the notes across the fretboard.
- New Triad builder practice - Master triads and improve your improvisation skills drastically.
- Custom time signature on the metronome.

Minor changes:
- General UI improvements

General UI updates

### 1.1 — 2026-03-31

- Added a new metronome feature! Now you can practice your scales and playing to a steady beat. 
- Fixed an issue with the interval trainer sometimes showing the wrong note on the fret.
- UI polish

### 1.0 — 2026-03-29

No release notes.

## More apps by Sean Tollefsen Sinclair

- [Hurty](https://appshunter.io/ios/app/hurty/id6771862095)

All apps by Sean Tollefsen Sinclair: https://appshunter.io/developer/1885234602

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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 2026-08-16.*