Fret IQ: Inversion Trainer

Master Guitar Chord Inversions

Only for iPhone

Free · In‑App Purchases

iPhone

FretIQ is an interactive guitar training app designed to help you truly understand the fretboard through intervals, inversions, chord structures, and harmonic relationships. Rather than memorizing isolated shapes, FretIQ trains pattern recognition across the entire neck through a series of engaging quiz modes and interactive tools. Frets and string sets constantly shift, helping players move beyond fixed positions and develop real fretboard fluency. Features include: • Interval and inversion training games • Multiple quiz modes for different styles of recognition • Interactive chord and harmony catalogue • Triads, seventh chords, spread voicings, and advanced harmony • Real audio playback for notes and chords • Progressive difficulty and randomized fretboard challenges • Clean design focused entirely on learning — no ads or distractions Whether you are a beginner building fretboard awareness or an advanced guitarist refining harmonic visualization, FretIQ is designed to strengthen the connection between your ears, your hands, and the guitar neck itself. No subscription. No ads. Ever.

  • 5.0
    out of 5
    4 Ratings

Fixed bug showed that showed app as running in "developer mode" when it was not.

The developer, DEVAN JAMES MAROTTA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • DEVAN JAMES MAROTTA
Size
  • 179.8 MB
Category
  • Education
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Devan Marotta