# Fretonomy vs Clef Trainer Grid

The clearest difference is price: Fretonomy at Free against Clef Trainer Grid's $2.99. Fretonomy also leads on ratings volume (2.5K vs 13). Clef Trainer Grid's advantage is in-app purchases (none vs 10) and update cadence (daily vs weekly). On rating, ads and device support there is nothing between them.

Fretonomy is free to download; Clef Trainer Grid costs $2.99 up front. Fretonomy sells 10 in-app purchases, starting at $2.99 per month. Clef Trainer Grid asks for nothing beyond the download.

Clef Trainer Grid holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Fretonomy has 2.5K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 65% of Fretonomy's written reviews are positive against 83% of Clef Trainer Grid's.

Fretonomy ships an update weekly, Clef Trainer Grid daily. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Fretonomy | Clef Trainer Grid |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.6 (2.5K ratings)](https://appshunter.io/ios/app/fretonomy-learn-fretboard/id1279576225/reviews) | **[4.8 (13 ratings)](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721/reviews)** |
| Number of ratings | **2.5K** | 13 |
| Positive reviews | 65.3% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#191** |
| Size | 106 MB | 3 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Strong Apps LLC](https://appshunter.io/developer/1279576223) | [John Andersen](https://appshunter.io/developer/1829819109) |

## What reviewers say

### Fretonomy

[App page](https://appshunter.io/ios/app/fretonomy-learn-fretboard/id1279576225)

Master the guitar fretboard with interactive games and tools. Learn notes, chords, and scales, and even compose your own music. Practice with your real instrument and track your progress with detailed statistics.

**Highlights:** Interactive fretboard games, Note, chord, and scale learning, Real instrument practice with mic detection, Songwriting and tablature tools, Progress tracking and heat maps, Support for 9 instruments, Customizable learning options

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per month |
| Premium | $4.99 | per month |
| Premium | $23.99 | per year |
| Guitar | $2.99 | one-time |
| 4-String Bass | $2.99 | one-time |
| Mandolin | $2.99 | one-time |
| Ukulele | $2.99 | one-time |
| Banjo | $2.99 | one-time |
| 5-String Bass | $2.99 | one-time |
| All Instruments | $99.00 | one-time |

**What reviewers like**

- 🚀 Helpful for learning fretboard
- 🎨 Clean and intuitive interface
- 🧠 Effective for memorizing notes
- 💰 Good value for money
- 🔄 Constant updates and improvements

**What reviewers complain about**

- 🐛 Bugs and glitches in some features
- 🔒 Subscription model required for full access
- 📏 Limited fretboard zoom and visualization
- 🔊 No audio feedback for correct notes
- 🔀 Repeated notes in some exercises

**Reported bugs**

- Subscription not unlocking full access
- Fretboard visualization issues on certain devices
- Crashes and freezes in some game modes
- Incorrect note/chord display on staff

**Requested features**

- Ability to customize note/chord display on staff
- Option to disable specific notes/chords in exercises
- Interval identification game
- Metronome integration for scale practice
- Cloud sync for progress and settings


### Clef Trainer Grid

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

**Currently charting:** #191 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 Fretonomy free?

Fretonomy is free to download, with in-app purchases available.

### Is Clef Trainer Grid free?

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

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

Clef Trainer Grid is rated higher. Fretonomy averages 4.6 out of 5 from 2.5K ratings, while Clef Trainer Grid averages 4.8 from 13 ratings.

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

Neither Fretonomy nor Clef Trainer Grid shows ads.

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

Fretonomy ships an update weekly, and Clef Trainer Grid daily. Most recently, Fretonomy was updated on November 6, 2026 and Clef Trainer Grid on November 5, 2026.

---

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