# Thelonious vs Fretboard Map

The clearest difference is iOS requirement: Thelonious at 15.1 against Fretboard Map's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Thelonious | Fretboard Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thelonious/id6760714389/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | Free | — |
| Size | 34 MB | 16 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Natale](https://appshunter.io/developer/1885874591) | [Jialang Zhang](https://appshunter.io/developer/1828527370) |

## What reviewers say

### Thelonious

[App page](https://appshunter.io/ios/app/thelonious/id6760714389)

This app simplifies music theory with visual aids for keys, chords, and scales. It helps users understand harmony and apply concepts to real playing, including guitar-specific features.

**Highlights:** Visual layouts for keys, chords, and scales, Diatonic chord and key relationship study, Chord progressions and harmonic movement, Guitar mode charts, CAGED system material, Relative minor and dominant chord learning

**Features:** macOS Compatibility

**In-app purchases:** none


### Fretboard Map

[App page](https://appshunter.io/ios/app/fretboard-map/id6766159772)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thelonious free?

Thelonious is free to download, with no in-app purchases.

### Is Fretboard Map free?

Fretboard Map is free to download, with no in-app purchases.

### Do Thelonious or Fretboard Map have ads?

Neither Thelonious nor Fretboard Map shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*