The app that makes sound visible

Features

Stop Memorizing. Start Understanding.

Just memorizing words won’t help you hear English clearly. When you learn through sound, English starts to make sense.

Traditional Learning

Memorization

Character representing traditional English learning

Memorize rules

Memorize words

Sounds are hard to catch

Hard to hear differences...

Phonemuzu Learning

Sound Categories

Character representing Phonemuzu sound learning

Learn new sounds

See sound differences

Train your ear for sounds

Hear the difference

Visualize Sounds

English Has More Sounds Than You Think

English uses many sounds that can be hard to tell apart.

Acoustic chart visualizing English and Japanese vowels with colors, shapes, and characters

Phonemuzu turns sounds into colors, shapes, and characters so you can understand them at a glance.

Read by Sound

See the Sounds in English

When sounds become visible, English becomes easier to understand and read naturally.

Without Phonemuzu

How do I pronounce this?

I wanna eat bananas.

Learner feeling unsure about reading English

Just guessing...

Lacking confidence...

With Phonemuzu

I wanna eat bananas.

Learner understanding English sounds

Read with Confidence!

Hear the Difference!

Train Your Brain to Hear English

Mixed Sounds

English sounds mixed together

English sounds mix together.

Clear Sounds

English sounds organized into clear sound categories

Your brain learns sound differences.

Listening alone isn’t enough. Phonemuzu builds sound categories.

Phonemuzu Technology

See and Fix Your Pronunciation

With Phonemuzu’s patented targeting system, you can see exactly where your pronunciation is off and correct it in real time.

Non-Native Learner

Targeting analysis showing non-native pronunciation drift

Native Pronunciation

Targeting analysis showing pronunciation hitting the native-friendly range

Not just a score. See how your sound is different.

\ See Your Pronunciation in Action /

Designed by native speakers

Built by design, education, and AI experts

Design

Design lead profile

Born and raised in the U.S. Creative Director

Education

Education lead profile

25 years in the U.S. English educator

Engineer

Engineering lead profile

Born and raised in the U.S. Full-stack engineer

Award-winning founder profile image

Build by

Native speaker × designer

Make sounds intuitive

Adobe World Championship

Japan Champion '24

e-Learning Awards

2025 Chairman's Award (JEPA)

Kyoto University of the Arts

President's Award

Born in California, raised in the U.S. Inspired by Japanese design, studied art in Japan

Cofounder profile image

Keio University Student

Native speaker × Engineer

Analyzes learner speech through data-driven methods

Keio University

(SFC), 3rd year

Patent Granted

Research in speech analysis

e-Learning Awards

Chairman's Award (JEPA)

California-born, U.S.-raised Researching phoneme analysis (Nakazawa-Okoshi Lab)

Recognition & Achievements

Japan e-Learning Awards medal

22nd Japan e-Learning Awards

Chairman's Award (JEPA)

Patent granted medal

Patented in Japan

PCT application filed for global expansion

The Japan e-Learning Awards are the industry's top honor, featuring ministerial awards from four ministries.They recognize outstanding e-learning innovations,content, and applications from Japan and beyond.