# Capo: Guitar Chords & Scales — Guitar fretboard companion app

> Guitar fretboard companion app (iPhone/iPad app by Martijn Ensing.)

- Source: https://appshunter.io/ios/app/capo-guitar-chords-and-scales/id1523517953 (this page in markdown: same URL + `.md`)
- Developer: [Martijn Ensing](https://appshunter.io/developer/1490221761)
- Category: Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 32 MB
- Languages: English
- Released: 2020-08-12
- Data updated: 2026-08-09
- User reviews in markdown: https://appshunter.io/ios/app/capo-guitar-chords-and-scales/id1523517953/reviews.md

## What is Capo?

See any chord or scale on an interactive fretboard — guitar, bass, ukulele, mandolin, and more. Capo is the practice companion from Sonid.

Pick a chord like Cmaj7 or a scale like Dorian, choose your tonic, and study it on the neck. Switch between curated voicings and a full-neck view that highlights every chord tone. Tap any note for interval names, pitch info, and links to Sonid theory articles.

Capo shares the same chord and scale library as Sonid, so what you learn in lessons maps directly to the fretboard in your hands.

Features:
- Interactive fretboard for chords, scales, and intervals
- Sonid theory library — search, favorites, and difficulty filters
- Voicing mode and full-neck chord-tone highlighting
- Note names, interval abbreviations, or fret numbers on the neck
- Learn tab with theory articles for what you are viewing
- Guitar, bass, ukulele, and mandolin layouts with instrument tunings
- Light, dark, or system appearance
- Open chord and scale links from sonid.app straight into Capo

Capo Plus
Subscribe for ad-free practice, alternate tunings (Drop D, DADGAD, open tunings, 7-string), and access to the full advanced theory library.

Whether you are learning your first shapes, teaching a student, or writing songs, Capo answers one question fast: where does this chord or scale live on my neck?

Part of the Sonid family — download Capo and take Sonid theory to the fretboard.

Terms of Service 
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Fretty Plus | $1.99 | per month |
| Fretty Plus Year | $12.99 | per year |



## Version history (last 5 releases)

### 1.0.0 — 2026-07-04

Completely rewrote the app to native swift(ui).
- Added localizations for 7 locales.
- Added support for multiple instruments & tunings.
- Added curated chord voicings for non-guitar instruments.
- Added fretboard & app theming. Including animations.
- Added in-app theory articles from Sonid
- Added and improved fretboard that's scalable and ever so easy to use.

### 0.5.2 — 2020-10-27

Looking up chord voicings is now easier and more clear. Fretty will show a chord voicing when selecting a chord by default and animate the notes to play. It also sorts the voicings by dificulty. The library is now completed with all chords. Changed the app name.

### 0.5.0 — 2020-10-21

Redesigned Fretboard page menus
Added +20 more chord voicings

### 0.4.5 — 2020-10-12

- Expanded chord shape library
- Updated store text and images

### 0.4.3 — 2020-10-08

Revised app completely
Added more options
Expanded scale/chord library
Option to add to favorites
Added subscription
Added admob banner

## Apps similar to Capo

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Music Wrench](https://appshunter.io/ios/app/music-wrench/id965939820) | 4.5 (21) | Free | Music |
| [ChordsVault](https://appshunter.io/ios/app/chordsvault/id1024176980) | 5.0 (1) | Free | Music |
| [LoopDeLoop](https://appshunter.io/ios/app/loopdeloop/id982766020) | 1.0 (2) | Free | Music |
| [Chord Tone Soloing For Guitar](https://appshunter.io/ios/app/chord-tone-soloing-for-guitar/id1031680220) | 3.5 (2) | $9.99 | Music |
| [Sight Reading Factory](https://appshunter.io/ios/app/sight-reading-factory/id1046058520) | 2.7 (382) | Free | Music |
| [B-System CBA Accordion Tutor](https://appshunter.io/ios/app/b-system-cba-accordion-tutor/id1037609940) | 3.5 (2) | $1.99 | Music |

## More apps by Martijn Ensing

- [Learn music theory with Sonid](https://appshunter.io/ios/app/learn-music-theory-with-sonid/id1490221762)
- [Directus Mobile](https://appshunter.io/ios/app/directus-mobile/id6740696350)

All apps by Martijn Ensing: https://appshunter.io/developer/1490221761

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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 2026-08-09.*