Learn music theory with Sonid

Learn music theory with Sonid

Music theory for everyone!

214 ratings
19 reviews
Free
In-App PurchasesWith Ads

Details

Released
January 2, 2020
Updated
October 23, 2026

Features

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About

Learn music theory with a structured, subject-focused approach. Master notes, intervals, chords, and scales through interactive lessons, quizzes, and exercises. Expand your musical knowledge and refine your skills.

✓Learn individual musical subjects
✓Answer questions about learned topics
✓Exercise notes, intervals, chords, scales
✓Unlock new learning modules
✓Earn experience points and badges
✓Lookup musical term information
✓Display notes in playground
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+1

What's New in Learn music theory with Sonid

6.7.0

October 23, 2026

- improving lesson UX - new Heart Retry consumable

5

Subscriptions & In-App Purchases

Sonid Plus

Learn music theory without ads!

$3.991 Month
How to cancel Learn music theory with Sonid subscription ⁉️

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Don't Miss a Beat

Win a month Sonid Plus doing our rhythm test!

Aug 31, 2026 — Oct 1, 2026

User reviews

Please Fix This

The triad section is broken and unpassable. The exercise asks you to build a full triad, but the app won't let you register three notes (section two) — so a correctly placed chord gets marked wrong every time. Entering the notes one at a time doesn't help either; it still counts a right answer as wrong. There is no way to complete the section, which means there's no way to progress in the app at all. This isn't difficulty, it's a straight-up bug that makes the core lessons unusable. I liked the one-concept-at-a-time approach up to this point, so fix the triad input and I'll gladly raise the rating. As it stands I can't recommend paying for something you can't actually finish.
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Response from developer

Hi, thanks for sharing your bug report. I have actually worked really hard past month to completely revise the app to native swift ui. And made major improvements to question answering and grading. I am sure it will fix this bug and work towards a release next week. I hope it helps you, otherwise please let me know through info@sonid.app

Great, one problem tho

On the web version the guitar isn’t loading but I do recommend

Buena noticia

Dios le llama al arrepentimiento. Usted ha violado la Ley de Dios que Él escribió en su corazón; su propia conciencia te condena. Por lo tanto, merece “la multa”, el castigo del infierno. Pero Dios es bueno, misericordioso y bondadoso.

Por eso, Jesucristo (Dios en la carne) murió en la cruz. La Ley fue violada, pero Cristo pagó la multa. Él sufrió en cambio, como Sustituto, y resucitó después de tres días y vencio a la muerte. Ahora está sentado a la diestra del Padre.

Arrepiéntase y ponga su fe en la Persona y obra de Cristo, y entonces así será salvo de la ira de Dios. Póngase a cuenta con Dios hoy, antes de que sea muy tarde.

“Porque por gracia sois salvos por medio de la fe; y esto no de vosotros, pues es don de Dios; no por obras, para que nadie se gloríe.” (Efesios 2:8-9)
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Can’t hear the sound

Even the sound setting is on

Hasta el momento bien

Al principio no sonaba, ya solucionado. Lo demás se ve súper bien

Developer apps

FAQ

What does Sonid do?

Sonid is a music education app designed to teach music theory in a fun and structured way. It focuses on one subject at a time, allowing for natural understanding and adaptation to new material. The app covers harmony and ear-training, helping users build scales, recognize chords and progressions, and understand musical terminology.

What are the key features of Sonid?

Key features include learning about specific musical subjects like notes, intervals, and scales, followed by answering related questions. Users can exercise various topics with adjustable difficulty, unlock new modules, earn experience points, and look up detailed information about musical terms. A playground feature allows displaying notes from scales, chords, or intervals.

How much does Sonid cost?

The app is free to download and use, offering in-app purchases for additional content. Subscribing to Sonid Plus unlocks more exercises, tests combining various topics, detailed error statistics, and an ad-free learning experience.

Who is Sonid for?

Sonid is suitable for both beginners and more advanced musicians who wish to expand their musical knowledge. It's ideal for anyone wanting to improve their understanding of harmony, ear-training, and musical composition, ultimately aiming to become a more refined musician.

What musical concepts can I learn with Sonid?

Sonid focuses on harmony and ear-training. You can learn to build and play any existing scale, recognize keys and progressions, read and understand chord symbols, and identify intervals, chords, scales, and progressions by ear. This knowledge helps in composing, improvising, and communicating effectively with other musicians.