Theory Gym

Music Theory Mental Exercises

Free · Designed for iPad. Not verified for macOS.

Build real theory fluency—not just shapes. Voice-powered interval, chord & scale drills with instant feedback and progress tracking. Understand music — not just memorize shapes. Theory Gym is a voice-first music theory trainer built for real fluency: fast mental recall, accurate spelling, and measurable progress. Music teachers often recommend “mental reps” to make theory automatic—Theory Gym turns those reps into quick, guided workouts with instant feedback and progress tracking. Three voice-powered workouts: 1) Interval Discovery Given a start note + interval, say the target note. Example: C + m3 → Eb 2) Chord Spelling Given a chord name, spell the chord tones in order. Example: Dm7 → D F A C 3) Scale Spelling Given a scale name, spell the scale notes in order. Example: G Major → G A B … Why it works - Live feedback (so you don’t rehearse mistakes) Speed tracking over time (see your time-to-solve drop as you improve) Built for consistency: quick sessions you can actually sustain Notes - Voice-only experience (requires microphone permission) English only (for now) — optimized for spoken note names plus “sharp/flat”

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We've adjusted and tweaked chord exercises UI. Thank you for your feedback!   Keep it coming so we can continue to improve.

Version 1.0.2

The developer, Jacob Naparstek, 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:

    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Contact Info

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

Accessibility

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

Information

Seller
  • Jacob Naparstek
Size
  • 11.6 MB
Category
  • Education
Compatibility
Requires iOS 26.0 or later.
  • iPhone
    Requires iOS 26.0 or later.
  • iPad
    Requires iPadOS 26.0 or later.
  • Mac
    Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 26.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © Theory Gym 2016
  • Developer Website
  • Privacy Policy

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