Music Theory Helper

Contains adsIn-app purchases
4.4
6.19K reviews
1M+
Downloads
Content rating
Everyone
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About this app

I made this app to help you easily understand and find information about music theory. Use the included tools and exercises to improve your ear training, music theory skills and sight-reading.

Please, contact me if you find any problems with the app, or if you want to share your feedback!

Theory
Intervals, chords, note values, rests, circle of fifths, scales, octaves, and various notation symbols (dynamics, articulation etc.)

Tools
Chord builder - generate chords and listen to examples
Scale builder - generate scales and listen to examples
Mode builder - generate modes and listen to examples
Practice Helper (paid feature) - use this tool to randomize scales, keys and chords. It can help you during your practice sessions when you ask yourself "what should I practice next?"

Exercises
Ear training is a crucial part of becoming a musician! That's why Music Theory Helper includes bort ear training and music theory exercises to help you train your skills:
Listening exercises - interval recognition (melodic and harmonic), chord recognition, chord inversions, chord progressions (major)
Reading exercises - note reading (sight-reading), interval reading, chord reading, key signatures, scale formulas
Mental practice - chord/scale degrees

The app is free, but some features require an active subscription.



Available in the following languages: English, Spanish, Italian, Russian, German, Swedish, Danish, Finnish, French, Japanese, Korean, Norwegian, Portuguese, Chinese.
Updated on
Aug 13, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App info and performance, and Device or other IDs
This app may collect these data types
App activity
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.4
5.81K reviews
Oscar von Nandelstadh
November 9, 2025
Nobody should pay 35€ a year for this app. It is worth 20€ at most for a lifetime license. As it stands, the features are available elsewhere for far less.
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Alex
November 9, 2023
Extremely helpful and also very organised. It's clear, where to find which information and you can also practise your hearing with intervals, chords, etc. I never really had much to do with music theory, but this was all easily understandable and I'm getting into it now 😊 Only negative thing is that you have to pay to unlock some features, it's understandable, but still sad :/
16 people found this review helpful
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Elie Buko
June 12, 2023
i think it's really good for learning music theory. cuz I, a novice, know as good as nothing about music theory, and still this app is a big help on the first day! even the free version. i haven't even seen all the features—since I'm just starting on the app—but I'd recommend it to a lot of people. Ooh, and also, on top of it being good to use, I find it really fun :)
13 people found this review helpful
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What’s new

Please, contact me if there are any issues!

v5.2
• Bug fixes
• Design improvements!

Check out the full changelog in: "Settings" -> "About" -> "Changelog"