Mugen Sound
Health & FitnessProductivity

Mugen Sound

Koichiro Kamada · released 12 Nov 2025 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
Rating 4.60 15 reviews

No in-app products collected for this app.

Rating
Japan73%114.82
India7%15.00
Italy7%15.00
Turkey7%11.00
Uzbekistan7%15.00
United Arab Emirates<1%0
Afghanistan<1%0
Antigua And Barbuda<1%0
Anguilla<1%0
Albania<1%0

The store shows a different set in every country

Description

■ What is Mugen Sound?

Mugen Sound is the ultimate ambient sound app that enriches your life through the power of sound. Combining cutting-edge audio content with advanced playback technology.

■ Focus, Sleep, and Noise Masking—All with a Single Tap

Mix natural sounds with color noise to create your perfect environment.

Automate your routine with custom durations like "25 min focus + 5 min break."

Seamless infinite loops that never break immersion.

■ Unique Features

▼ Mix Multiple Sounds Freely

Ocean waves + pink noise, forest sounds + brown noise—

Create your ideal soundscape with any combination you like.

▼ Set Individual Playback Duration for Each Sound

"25 minutes of brown noise for focus, then 5 minutes of ocean waves to refresh."

With playlist functionality, customize the duration for each sound.

Perfect for Pomodoro Technique or bedtime routines—all automated.

▼ Uninterrupted Immersion

Smooth, seamless infinite loops with no jarring transitions.

Ambient sounds continue endlessly without interruption.

▼ Professional-Grade Binaural Recording

Created in collaboration with okidesign, a sound design company.

Recorded in locations across Japan—Hinuma in Ibaraki, Namie in Fukushima, Sakura in Chiba—

these binaural recordings make you feel like you're actually there when listening with headphones.

▼ Visual Soundscapes That Soothe

Beautiful visualizers (toggle on/off) respond to sound frequencies and move dynamically.

Deep immersion through both sight and sound.

■ Rich Feature Set

Mix multiple sounds freely

Create playlists with custom durations

Curated natural sounds and color noise (6 types)

Fine-tune volume for each sound individually

Proprietary auto-balancing for consistent volume levels

Play simultaneously with other apps (layer music + ambient sounds)

*Subject to other app specifications

Pomodoro timer with interval notifications

Sleep timer (auto-stop)

Offline playback support

No sign-up required

■ Perfect For

【Work & Study】

Automate 25-min focus + 5-min refresh (Pomodoro)

【Sleep】

Pink noise + rain sounds + 60-min timer for better sleep

【Noise Masking】

White noise softens ambient noise in cafes or libraries

【Meditation & Yoga】

Natural sounds for moments of calm

【Baby Sleep Aid】

Gentle sounds support peaceful sleep

■ Sound Library

▼ Natural Sounds Collaboration Collection

Spring in Sakura, tea fields and streams of Sasama, Lake Toya, Lake Hinuma shoreline...

Professional binaural recordings of Japan's authentic soundscapes

More sounds coming soon

▼ Complete Color Noise Collection

White noise, pink noise, brown noise,

gray noise, violet noise, blue noise

*Popular choices for focus and sleep

■ Refined Design

Beautiful, intuitive interface that's easy to use.

Carefully selected photos that capture the essence of each sound.

A calming experience every time you use it.

■ Download Now

Focus. Relaxation. Sleep.

Everything you need, right in your hands.

■ Go Premium with Free Trial for Even More Freedom

Ad-free experience

Add your own sounds (WAV/MP3/AAC supported)

*Compatible with audio files (DRM-free) in iCloud Drive or Files app

Cancel anytime in Settings.

Subscription auto-renews after free trial ends.

Pricing available in-app.