# Fretbrrd vs Clef Trainer Grid

The clearest difference is price: Fretbrrd at Free against Clef Trainer Grid's $2.99. Clef Trainer Grid's advantage is update cadence (daily vs every 2 months) and ratings volume (12 vs 1). On rating, ads, in-app purchases and device support there is nothing between them.

Fretbrrd is free to download; Clef Trainer Grid costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Fretbrrd against 5.0 for Clef Trainer Grid. That said, the two scores are not equally well evidenced: Clef Trainer Grid has 12 ratings behind it against 1, so its average is the more settled of the two.

Fretbrrd ships an update every 2 months, Clef Trainer Grid daily. The most recent releases landed on June 2, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Fretbrrd | Clef Trainer Grid |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fretbrrd-fretboard-mastery/id6746062298/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#110** |
| Size | 22 MB | 3 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rinat Khaziev](https://appshunter.io/developer/1814974391) | [John Andersen](https://appshunter.io/developer/1829819109) |

## What reviewers say

### Fretbrrd

[App page](https://appshunter.io/ios/app/fretbrrd-fretboard-mastery/id6746062298)

Master the guitar fretboard with interactive lessons and exercises. Learn notes, chords, and scales through visual patterns and audio feedback. Track your progress and practice efficiently on any device.

**Highlights:** Interactive color-coded fretboard, Guided lessons and exercises, Test mode with adaptive cues, Visualize scales and chords, Real-time playback, Progress tracking, Left/right-handed modes

**In-app purchases:** none


### Clef Trainer Grid

[App page](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721)

**Currently charting:** #110 Top Paid · Education (US App Store)

Master sheet music reading across multiple clefs. Practice note input via touch, MIDI keyboard, or microphone. Features a unique grid input to ensure genuine learning, not just muscle memory.

**Highlights:** Treble, alto, and bass clef support, Major and minor key signature support, Accidental support, Adjustable ledger lines, Grid input for muscle memory prevention, MIDI keyboard and microphone input, Cheat Mode for real-time note names

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

**In-app purchases:** none


## Frequently asked questions

### Is Fretbrrd free?

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

### Is Clef Trainer Grid free?

Clef Trainer Grid costs $2.99, with no in-app purchases.

### Which has better reviews, Fretbrrd or Clef Trainer Grid?

Fretbrrd and Clef Trainer Grid are both rated 5.0 out of 5 on the App Store, from 1 and 12 ratings respectively.

### Do Fretbrrd or Clef Trainer Grid have ads?

Neither Fretbrrd nor Clef Trainer Grid shows ads.

### Which is updated more often, Fretbrrd or Clef Trainer Grid?

Fretbrrd ships an update every 2 months, and Clef Trainer Grid daily. Most recently, Fretbrrd was updated on June 2, 2026 and Clef Trainer Grid on September 21, 2026.

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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.*