Skip to content
Tomus

iOS app · 4.9 on the App Store

Music theory you actually learn by playing.

Notes, rhythm, intervals, chords, scales and ear training — trained through short interactive games instead of chapters you forget by Thursday.

Download on the App StoreExplore music theory
Skill areas
5
theory to ear training
Session
Minutes
not evenings
Price
Free
to download
Three Tomus game screens on iPhone: a rhythm question asking which rhythm fits the time signature, a listening question asking who is playing, and a music history question showing a photo of John Coltrane.

The mechanic

Short games. Real notation. Immediate feedback.

Tomus does not hand you a textbook and hope. It asks you a question, you answer it on the staff or by ear, and it tells you straight away whether you were right.

  1. Open a game, not a chapter

    Each game is a run of ten or so questions with a timer and a few lives. You can finish one while the kettle boils.

  2. Answer, see the right answer, move on

    Every question shows what the correct answer was, with reference information where it helps. Mistakes are where the learning happens.

  3. Get a read on where you actually are

    The end-of-game summary reports correct answers, mistakes, accuracy and time — per game and across the five skill areas.

Tomus results and Daily Jam screens: a game summary showing 20 correct answers, 0 incorrect, 100% accuracy and a time of 3:18, next to a Daily Jam list of completed exercises and a sight-reading question.

What you train

Five areas, one app

Tomus splits music theory into the skills that actually behave differently — reading, hearing, counting, and knowing. Each has its own games and its own progress.

Daily Jam

The habit is the feature

Theory sticks through repetition spread over time. Daily Jam is Tomus's version of that: a small set of exercises waiting for you each day, pulled from different skill areas so nothing goes stale.

  • A fresh set each day, mixed across rhythm, sight-reading, theory and ear.
  • Accuracy shown per exercise, so a weak area is obvious rather than vague.
  • Short enough that doing it every day is realistic, which is the entire point.
Download on the App Store
The Tomus Daily Jam screen listing four completed exercises — Find all the notes at 80%, Identification of pitches at 95%, Rhythm tap at 100% and an ear-training question at 75% — with a Share my result button.

Learn

The theory, written down properly

Games are for practice. When you want the actual explanation — what an interval is, why a key signature has three sharps — it is here, free and without a sign-up wall.

All 8 topics

Second opinion

Not sure Tomus is right for you? Ask your AI.

We are hardly neutral about our own app. Your assistant already knows what you play, what you have been trying to learn and how much time you actually have — so let it tell you whether this is a fit, and where it isn't.

The prompt it sends

I'm considering Tomus, an iOS app that teaches music theory through short interactive games — note reading, rhythm, intervals, scales, chords and ear training.

Based on what you know about me, my musical background, the instruments I play and my goals, tell me:
1. whether Tomus is likely to be useful for me
2. which areas I should use it for
3. how to fit it into my practice
4. where Tomus is probably not the right tool for me

Product information: https://tomus.app

ChatGPT, Claude and Grok accept a prompt in the link, so they open with it already written. Gemini and DeepSeek have no such link, so we copy the prompt to your clipboard and open a blank chat for you to paste into. Your conversation stays between you and your assistant — we never see it.

Already convinced? Skip the second opinion.

Download on the App Store

From the App Store

What people who use it say

Real reviews, quoted as written. Tomus currently holds 4.9 from 52 ratings (US App Store, September 2026) — a small, honest number for a small, independent app.

Reviews are shown as published on the App Store and on the previous Tomus website. Star icons are decorative.

FAQ

Straight answers

What the app does, what it costs, and what it is not.

Anything missing? Write to info@tomus.app.

Download on the App StoreOpen the full FAQ page
Is Tomus suitable for complete beginners?

Yes. Questions start from the basics — note names, note values, simple rhythms — and the format is short multiple-choice and tapping games rather than lectures. The App Store listing rates the app 4+, and reviewers who describe themselves as starting from scratch are among the people using it.

Do I need to play an instrument?

No. Every exercise is played on the phone: you read notation, listen to audio, tap rhythms and choose answers. Tomus works alongside an instrument if you have one, but it never requires you to pick one up.

Can Tomus help me learn to read music?

Sight-reading is one of the five areas the app trains. Exercises ask you to name notes on the staff, find notes in a sequence and read rhythms in a given time signature. If you want the written explanations first, start with treble clef notes and note values.

Does Tomus include ear training?

Yes. Ear training is one of the five areas. Exercises play a note or a short passage and ask you to identify what you heard — individual pitches, sequences, and recognition questions built on real recordings.

Can I use Tomus without a piano?

Yes. Nothing in the app needs a keyboard, a microphone or any external hardware. Headphones help for the listening exercises, that’s all.

How is Tomus different from a traditional music theory course?

A course moves in one line from lesson one to lesson forty. Tomus is built around short games you can finish in a few minutes, with a Daily Jam that mixes exercises from different areas each day and shows accuracy per game afterwards.

It is practice and reinforcement, not a syllabus. That is why the written explanations live here on the site, in Learn, rather than inside the app.

What does Tomus cost?

Tomus is free to download, and a premium subscription unlocks the full set of games. On the US App Store the plans are Weekly $0.99, Monthly $2.99, Annual $9.99, Lifetime $69.99. Prices differ by region, and subscriptions are managed and cancelled through your Apple account.

The App Store page always shows the prices that apply to you.

Which devices does Tomus support?

iPhone and iPad, running iOS 15.0 or later. The app is in English and is designed to work offline. There is no Android or web version today.

Does Tomus track my progress?

Yes. Each game ends with a summary — correct answers, mistakes, accuracy and time — and progress is tracked across the five skill areas so you can see which one is lagging.

Play one game today.
See how much sticks.

Free to download, iPhone and iPad, iOS 15.0 or later. Start with the Daily Jam and go from there.

Download on the App StoreRead the FAQ first