# Theory Gym — Music Theory Mental Exercises

> Music Theory Mental Exercises (iPhone/iPad app by Jacob Naparstek.)

- Source: https://appshunter.io/ios/app/theory-gym/id6753793635 (this page in markdown: same URL + `.md`)
- Developer: [Jacob Naparstek](https://appshunter.io/developer/1533422844)
- Category: Education, Music
- Price: $3.99
- Age rating: 4+
- Requires: iOS 26.0 · 11 MB
- Languages: American English
- Released: 2026-01-21
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/theory-gym/id6753793635/reviews.md

## What is Theory Gym?

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”


## Version history (last 4 releases)

### 1.0.4 — 2026-07-10

In this version we fixed some issues.
Thank you all for the feedback! It helps us improve Theory Gym.

### 1.0.3 — 2026-05-31

We've made service infrastructure improvements and Theory Gym is now working smoother than ever. 

Thank you for your feedback!  
Keep it coming so we can continue to improve.

### 1.0.2 — 2026-01-23

We've adjusted and tweaked chord exercises UI.

Thank you for your feedback!  
Keep it coming so we can continue to improve.

### 1.0.1 — 2026-01-21

No release notes.

## More apps by Jacob Naparstek

- [Q.rate](https://appshunter.io/ios/app/qrate/id6451037403)
- [Mookie - Background Editor](https://appshunter.io/ios/app/mookie-background-editor/id6479374339)
- [Songle](https://appshunter.io/ios/app/songle/id6508169227)
- [Tonik](https://appshunter.io/ios/app/tonik/id6689514156)

All apps by Jacob Naparstek: https://appshunter.io/developer/1533422844

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-17.*