---
title: "Learn music theory with Sonid - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "SONID: LEARN MUSIC THEORY & EAR TRAINING  Master music theory, master your instrument. Sonid is the most comprehensive music theory app designed to take you from a total beginner to an advanced musici"
---

# Learn music theory with Sonid — United States
> Music theory for everyone!

![Learn music theory with Sonid App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/4b/47/6e/4b476ebe-aeab-1ce4-8346-88adddf83270/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/400x400bb.png)

**Developer:** [Martijn Ensing](https://apptail.io/developer/martijn-ensing-JzRb)
**Category:** Education
**Rating:** 4.7/5 (213 ratings)
**Price:** Free
**Bundle ID:** org.stroopwafel.music.app
**Store:** Apple App Store
**Country:** United States
**Version:** 5.6.3 (released 2026-09-28)
**Original Release:** 2020-01-02

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1490221762)
**AppTail Page:** [https://apptail.io/app/learn-music-theory-with-sonid-GkNc/united-states](https://apptail.io/app/learn-music-theory-with-sonid-GkNc/united-states)

## Learn music theory with Sonid Description
SONID: LEARN MUSIC THEORY & EAR TRAINING

Master music theory, master your instrument.
Sonid is the most comprehensive music theory app designed to take you from a total beginner to an advanced musician. Whether you want to write better songs, improvise with confidence, read sheet music, or train your ear, Sonid provides a clear, step-by-step path to musical mastery.

Unlike other apps that overwhelm you with information, Sonid focuses on single-subject learning. This structured approach ensures you master notes, intervals, and scales before moving on to complex jazz harmony and chord substitutions.

WHY CHOOSE SONID?

Structured Curriculum: Follow an orderly map of music theory—from the musical alphabet to advanced modal harmony. A dedicated Sheet Music course teaches you to read notes, clefs, rhythm, and key signatures on the staff.

Interactive Exercises: Practice intervals, chords, scales, and notation with fun, bite-sized lessons designed for daily consistency.

Ear Training: Develop a professional ear. Recognize chord qualities, inversions, and progressions just by listening.

Real-World Application: Learn how to use theory in your playing. Understand how a Dmaj7(#11) works and where to use the Lydian mode.

Musical Playground: Visualize any scale, chord, or interval on a virtual fretboard, keyboard, or staff to see how the notes connect.

Shared Assignments: Create a custom exercise and share it with a link or QR code. Teachers, students, and friends can take the same test—and you can follow their results.

BUILD YOUR THEORETICAL KNOWLEDGE
Every musician needs a strong foundation. Sonid gives you the tools to:

Read Sheet Music: Learn treble and bass clef, note values, rests, meters, and rhythm so you can play from written music with confidence.

Scale the Heights: Master every scale, from Major and Minor to exotic modes like Mixolydian and Phrygian.

Bridge the Gaps: Learn intervals (the building blocks of music) to navigate your instrument with ease.

Master Chords: Go beyond basic triads. Learn 7th chords, extensions, and jazz voicings.

Understand Progressions: Learn why certain chords sound good together and how to create tension and release.

FEATURES AT A GLANCE:

Daily Guided Practice: Short sessions for intervals, ear training, chord construction, and sheet music.

Level Up: Unlock new modules, earn XP, and collect badges as you progress.

In-App Wiki: Instantly look up any musical term or concept without leaving your lesson.

Customizable Difficulty: Choose from Easy to Expert levels to match your current skill.

In-App Forum: Get help from a community of musicians and theory experts.

UNLOCK YOUR FULL POTENTIAL WITH SONID PLUS

Take your musicianship to the next level with advanced features:

Combined Tests: Practice multiple topics (like hard intervals and chords) in one comprehensive exam.

Advanced Statistics: Identify exactly where you are making mistakes so you can practice smarter.

Ad-Free Learning: Stay focused on your music with zero distractions.

Stop guessing and start knowing.
Whether you are a songwriter, a teacher, or a student, Sonid helps you understand how music works so you can play with more freedom and control.

Download Sonid today and start building real musicianship.

Terms of use: 

## Learn music theory with Sonid Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d7/48/ac/d748acba-a393-a576-b2a8-81c8054569c4/en-01-classes-light-store.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f2/b5/0f/f2b50f41-a215-b9b8-99d9-3b04720b798b/en-02-exercise-light-store.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b3/14/c5/b314c5b1-21e4-bd8d-f663-a0693cb6fcf0/en-07-timeline-light-store.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ff/63/5c/ff635c6c-84f2-11a3-2a5e-dc1498458c07/en-04-guitar-extension-light-store.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6a/f3/aa/6af3aaa1-2410-08c9-98ce-cb76b4978539/en-08-analyze-light-store.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5c/b8/f0/5cb8f0ec-2e57-1b14-cff8-a69e5e66ddea/en-03-dictionary-light-store.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/47/2f/32/472f323c-866c-0cc7-0187-9424362ff640/en-06-profile-light-store.png/1320x2868.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/be/c6/7d/bec67dc8-b898-6579-4c0b-ca467ff21fef/en-09-dictionary-chord-light-store.png/1320x2868.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a1/d1/24/a1d12496-ed2a-d8e1-2d94-b3370661b54c/en-05-florins-light-store.png/1320x2868.png)

## Learn music theory with Sonid Rating Breakdown in United States
- 5 stars: 170 (80%)
- 4 stars: 26 (12%)
- 3 stars: 10 (5%)
- 2 stars: 2 (1%)
- 1 stars: 5 (2%)

## Learn music theory with Sonid Reviews in United States

### ****- "Great, one problem tho"
On the web version the guitar isn’t loading but I do recommend
-- Education wizz, 2025-04-05

### ****- "Really good! Although, one minor annoyance"
This app is amazing for training you on music theory concepts. it’s very engaging and the content sticks pretty well! My one annoyance is the app can get pretty laggy and sometimes you’ll press a button several times thinking it didn’t register and then they’ll all happen at once after causing you to input the incorrect answer on accident. i think you shouldn’t be able to press submit if you haven’t answered the question yet.
-- Gavin Hern, 2023-02-08

### ****- "Sound not working"
The ideas are great, it’s just the sound doesn’t play back sometimes. Sometimes I only hear one note when it’s asking for intervals, and sometimes notes just don’t play. If sound worked consistently, it’d be really good.
-- Aman E. Mouse, 2022-06-15

### **--- "Sound stopped working"
I loved this app and it was going so well but before I finished the first section the sound quit working. Thank have an iPhone 11 Pro and it is not on silent mode. I’m so sad because this would be an amazing app otherwise 😢
-- Anashi, 2022-02-12

### ***-- "Great app, but audio stutters"
I have last years iPhone and the audio stutters in Sonid. Is there any way to fix this?
-- wardrup, 2021-04-18

### *---- "Sound not working"
Enjoyed the free version so I purchased the 3 month option. After the purchase the sound stopped working.  So I tried everything I could think of to fix the sound.  So my last resort was to delete and reload the app.   And then when I logged in.  And tried to use the version I paid for it’s telling me that I need to purchase the app again ,,,,
-- sabinno200, 2021-03-13

### ***-- "This needs a lot of work, both on the technical and educational quality."
I am 47 years old. I believe my self to be of at least average intelligence. I have been playing drums in all kinds of rock bands for the last 30 years of my life. I know how to read a drum chart. I’ve put “musician” as my occupation on my tax return. This app, at least in the three beginner modules I’ve sampled (naturals, prime 1, second 1), is confusing and has weird technical issues. I paid for 3 months of subscription before really giving it a try. I hope it gets better.
-- pink dingus, 2021-02-08

### ***-- "Needs improvement"
The lessons are keyboard based, but the keyboard is tiny and the app cannot be viewed horizontally. 

I am on the major second section, and am asked to play two notes, but there is no sound when I play them. The explanation of major second is confusing.  Why is it a major second between C and D, two semi-tones between, and also E and F, one semi-tone between?

You cannot advance to other levels without passing earlier levels. The pace of this app is excruciatingly slow. The C is always present on the keyboard, which is not real life and I would like the option to turn it off.
-- SuperShoeDiva, 2021-02-01

### ***-- "No sound"
I turned off my DND just in case, but there still isn't any sound. :-(
-- KazandraK, 2020-12-12

### ****- "Sound not working"
Could you please help me? Sound isn’t working and I want to give 5 stars but I need the sound. I am on iphone8
-- qwertyasdfuippjjllgbx, 2020-12-05

[View all Learn music theory with Sonid reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Learn music theory with Sonid In-App Purchases
| Item | Price |
|------|-------|
| Sonid Plus | $2.99 |
| Sonid Plus Quarter | $8.49 |
| Guitar Extension | $9.99 |


## Learn music theory with Sonid Discovered Keywords
- read music
- learn music
- music learning
- music theory
- wolfram music theory course assistant
- music theory pro
- theory
- music theory games
- theory lessons
- music theory net

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## Learn music theory with Sonid Available In
- [United States](https://apptail.io/app/learn-music-theory-with-sonid-GkNc/united-states)
- [Netherlands](https://apptail.io/app/learn-music-theory-with-sonid-GkNc/netherlands)
- [United Kingdom](https://apptail.io/app/learn-music-theory-with-sonid-GkNc/united-kingdom)
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---

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