Theory Lessons icon
iOS

Theory Lessons

by musictheory.net

4.4(127)
Downloads
<3k

Last 30 days

Revenue
$0

Last 30 days

Rev/Download
-

Avg per download

Rating
4.4

127 reviews

Performance Insights

Category rankings

PaidMusic#112

Competition level

Low competition

Under 100K on both downloads and revenue — the kind of niche a small team can still take.

Tracked since

15 years

First seen January 2012 · 22 releases since

App Summary

Theory Lessons is an iOS app ($2.99) by musictheory.net in the music category, holding #11 in the paid music charts. It holds a 4.4-star rating.

  • A paid app priced at $2.99.
  • Ships new versions a few a year.
  • Latest version is 3.2.1, released April 21, 2026.
  • 73% of ratings are five-star.
  • Available in 1 language.
  • Strongest in US, GB, CA.
  • Downloads at 4.4 MB and requires iOS 15.8+.
  • Rated 4+.

App details

Version
3.2.1
Release status
Worldwide
Age rating
4+
Requires
iOS 15.8+
Size
4.4 MB
Languages
English
Price
$2.99
First seen
January 2012
Top markets
US, GB, CA
Publisher country
US

Release history

22 versions tracked

  1. Version 3.2.1Latest
  2. Version 3.2
  3. Version 3.1.1
  4. Version 3.0.1
  5. Version 3.0
  6. Version 2.5

Ships a few a year.

What users say

5
73%
4
11%
3
8%
2
2%
1
6%
  • 4.0

    Very good BUT

    This honestly is I would say the best music theory app out there I do with that between this app “Theory” and “Tenuto” that is would be more helpful in memorizing things like maybe implementing something for practice. Also I kinda wish “Theory” had a thing in the scales section to learn about pentatonic scales and blues scales. Also to learn to apply concert pitch to different instruments. Thanks I hope you guys are improving things also honestly this app is extremely good you should honestly have people pay for it so you can have the time to update it and stuff and implement those things.

    Reviewed on version 3.1.1

  • 5.0

    Amazing! Just one thing to add

    I didn&#39;t get into music theory until I got a guitar on a whim, then I wanted to try to actually learn music as a side thing, and now for the first time I feel like I actually know a little something about music. Only thing I would add to the app is something that you already have on your website (where I learned from, I downloaded the app and it&#39;s sister tenuto) is the pop-up piano that helped me figure out scales (I never learned piano so it was easier for me to visualize this way). Otherwise, thanks for you hard work!

    Reviewed on version 3.0.1

  • 5.0

    Truly Very Nice

    I had needed a great music theory app, and this fulfills my need quite perfectly. The teaching is laid out in a very easy-to-understand format with attractive interactive user-friendly diagrams. By the end of the first lesson, I felt as if I’d learnt quite a lot. And all without any effort at all. It’s unbelievable! I already have an excellent practical practice app, in form of playgroundsessions app, that I had bought in a package deal along with a baby grand piano. But I had found the hands-on playgroundsessions teaching tool to be slightly lacking in deep music theory support. So I went looking for something to compliment the playgroundsessions hands-on app, and to hence fully round out my musical education. Now I have one app for hands-on practice, and this one, for in-depth theory learning. This is great!

    Reviewed on version 3.1.1

About Theory Lessons

1,208 characters

Theory Lessons features 39 music theory lessons from musictheory.net, presented in their original animated versions.

Complete lesson list:

• The Staff, Clefs, and Ledger Lines • Note Duration • Measures and Time Signature • Rest Duration • Dots and Ties • Steps and Accidentals

• Simple and Compound Meter • Odd Meter

• The Major Scale • The Minor Scales • Scale Degrees • Key Signatures • Key Signature Calculation

• Generic Intervals • Specific Intervals • Writing Intervals • Interval Inversion

• Introduction to Chords • Triad Inversion • Seventh Chords • More Seventh Chords • Seventh Chord Inversion

• Diatonic Triads • Roman Numeral Analysis: Triads • Diatonic Seventh Chords • Roman Numeral Analysis: Seventh Chords • Composing with Minor Scales • Voicing Chords • Analysis: O Canada

• Nonharmonic Tones • Phrases and Cadences • Circle Progressions • Common Chord Progressions • Triads in First Inversion • Triads in Second Inversion • Analysis: Auld Lang Syne

• Building Neapolitan Chords • Using Neapolitan Chords • Analysis: Moonlight Sonata

Screenshots

5 iPhone screenshots
Theory Lessons iPhone screenshot 1
Theory Lessons iPhone screenshot 2
Theory Lessons iPhone screenshot 3
Theory Lessons iPhone screenshot 4
Theory Lessons iPhone screenshot 5
Frequently Asked Questions

Theory Lessons iOS app is available. The app maintains a 4.4-star rating based on 127 user reviews, indicating strong user satisfaction in the mobile app market.

Theory Lessons iOS app competes actively in the mobile app category.

You can download Theory Lessons iOS app from the App Store for iOS devices, requiring iOS 15.8 or later. The app provides its core features without requiring in-app purchases.

View on App Store
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