# String Theory: Guitar Practice — Scales, Chords, Riffs

> Interactive guitar fretboard tool for scales, chords, tunings, and riff recording. (iPhone/iPad app by DANIEL NIKOLAS SZTURM.)

- Source: https://appshunter.io/ios/app/string-theory-guitar-practice/id6760247019 (this page in markdown: same URL + `.md`)
- Developer: [DANIEL NIKOLAS SZTURM](https://appshunter.io/developer/1883123507)
- Category: Music, Utilities
- Price: $1.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 10 MB
- Languages: American English
- Released: 2026-03-26
- Data updated: 2026-06-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/string-theory-guitar-practice/id6760247019/reviews.md

## What is String Theory?

String Theory is a focused guitar tool for exploring scales, visualizing the fretboard, matching chords, and capturing riff ideas without clutter.

Build better fretboard awareness with an interactive scales map, compare two scales at once, test custom tunings, and find compatible chords in seconds. When inspiration hits, record the idea and save it to your riff vault with notes and playback.

Features:
• Interactive guitar fretboard with scale mapping
• Major, harmonic minor, melodic minor, and pentatonic scale families
• Scale Finder and Chord Finder tools
• Chords-to-scales matching
• Add a second scale overlay for comparison
• Custom tunings with per-string octave control
• Left-handed fretboard mode
• Fullscreen fretboard view
• Riff recording, playback, rename, share, and vault organization
• Light/dark mode, 3 color themes, haptics, and a polished liquid glass interface

Whether you’re practicing improvisation, learning theory, or saving new ideas, String Theory keeps the essential guitar tools in one fast, modern app.

## Key features

- Interactive guitar fretboard with scale mapping
- Scale and Chord Finder tools
- Custom tunings with octave control
- Riff recording and vault organization
- Left-handed mode
- Scale comparison overlay

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/string-theory-guitar-practice/id6760247019/reviews.md

### 5/5 — WOOOHOOOO

*2026-03-29*

AMAZING APP

## Frequently asked questions about String Theory

### What scales can I explore with String Theory?

String Theory allows you to explore major, harmonic minor, melodic minor, and pentatonic scale families. You can also compare two scales simultaneously on the interactive fretboard.

### Can I use custom tunings in String Theory?

Yes, String Theory supports custom tunings with per-string octave control. This feature helps you experiment with different guitar tunings for your practice and songwriting.

### Does String Theory have a riff recording feature?

Yes, String Theory includes a riff recording feature. You can capture your musical ideas, save them to a vault with notes, and organize them for later playback and sharing.

### Is String Theory available on Android devices?

Based on the provided information, String Theory is supported on iPhone and iPad. There is no mention of Android device compatibility.

### How often is String Theory updated?

String Theory was last updated on March 27, 2026, with version 1.0. Further update frequency details are not available in the provided data.

### What is the age rating for String Theory?

String Theory has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger learners.

### Does String Theory have ads?

No, String Theory does not contain advertisements. The app is a paid application with no in-app purchases or ads.

### What makes String Theory's interface unique?

String Theory features a polished liquid glass interface with light/dark modes and three color themes. It also includes haptic feedback for an enhanced user experience.

## Version history (last 1 release)

### 1.0 — 2026-03-27

No release notes.

## More apps by DANIEL NIKOLAS SZTURM

- [Terminal Journal](https://appshunter.io/ios/app/terminal-journal/id6760196562)

All apps by DANIEL NIKOLAS SZTURM: https://appshunter.io/developer/1883123507

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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 2026-06-05.*