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CityVoice(Offline & Ad-Free)

Urban Ambient Sound App — Fully Offline and Completely Ad-Free

Urban Ambient Sound App — Fully Offline and Completely Ad-Free

CityVoice(Offline & Ad-Free)

by SINN MIRAI, K.K.

What is it about?

Urban Ambient Sound App — Fully Offline and Completely Ad-Free

App Details

Version
1.1
Rating
NA
Size
53Mb
Genre
Productivity Business
Last updated
August 25, 2025
Release date
August 11, 2025
More info

App Store Description

Urban Ambient Sound App — Fully Offline and Completely Ad-Free

〇 Fully usable offline
〇 No ads or in-app purchases whatsoever
〇 Intuitive interface, even your grandma can use it

What is 1/f fluctuation?
The sound of rain, a crackling fire, birds chirping, the gentle flow of a river…
These soothing sounds all share a common quality called “1/f fluctuation.”
This app recreates that comforting sensation by blending subtle everyday urban sounds with 1/f fluctuation, gently calming your mind.

Recorded Sounds
・Cafe
・City streets
・Expressway
・Office
・Classroom

Recommended for:
・When you want to focus on studying or working
・When you want to relax
・When you want to wind down before sleep

Typing sounds in the office, the clink of cups in a café, the sound of pencils in a classroom—
These everyday "urban ambient sounds" are enhanced with 1/f fluctuation to elevate comfort and tranquility.
Just by listening, you'll naturally feel more focused and relaxed.

Because it works completely offline, you don’t have to worry about losing signal.
With just your smartphone, you can recreate a "comfortable daily atmosphere" anytime, anywhere.

Looking for a calm moment or need to concentrate?
Why not experience just the right kind of urban environment that fits seamlessly into your daily life?

Download now and discover the comfort of urban ambient sound.

You can also preview the audio on our YouTube channel:

https://www.youtube.com/@SceneVoice

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