
Mugen Sound
Your Ultimate Soundscape.
0 ratings
Free
In-App PurchasesWith Ads
About
■ 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.
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What's New in Mugen Sound
1.30.1
July 7, 2026
This update improves in-app security. 【Security Improvements】 We strengthened how information is protected inside the app, helping you continue to enjoy Mugen Sound with greater peace of mind. We will keep improving Mugen Sound so it remains a safe and comfortable sound experience. If you notice anything, please contact us through in-app support.
MoreSubscription plans
Premium 1 Month
Premium features will be active for one month.
$0.491 Month








