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Work / HushFloat

Case study · Mobile app

HushFloat

A calm white-noise mixer — layer sounds for focus, sleep or rest.

Get it on Google Play ↗
Favourites
Sleep timer
Home
CLIENTIn-house product
YEAR2026
PLATFORMAndroid
ROLEStrategy · Design · Engineering
STATUS● Live on Google Play

[ 01 ] Overview

Your sound. Your calm.

The challenge

Noise apps are often a wall of loops with harsh edges, cluttered menus and timers that cut off abruptly. People wanted something gentle they could set up once and trust at 2 a.m.

The goal

Build a quiet, dark-first Android app where anyone can blend sounds with simple sliders, save favourite mixes, and fall asleep with a timer that fades out softly — all working offline.

[ 02 ] What we built

Four parts of one quiet app.

01
≡

Mixer

Layer rain, wind, waves, fan and more, each with its own volume slider.

02
♥

Favourites

Save any blend as a named mix and bring it back with one tap.

03
☾

Sleep timer

Choose a duration and the sound fades out gently instead of stopping.

04
♪

Sound library

High-quality, seamless loops grouped by nature, ambience and noise colours.

[ 03 ] Process

From a quiet idea to the Play Store.

01Discover →

Studied when people reach for noise — deep work, naps, newborns, noisy flats.

02Design →

A dark, low-glare interface with large touch targets that is easy on tired eyes.

03Build →

Native Android audio engine with seamless loops and reliable background playback.

04Launch

Play Store listing, staged rollout and steady updates shaped by user feedback.

[ 04 ] Screens

The app, screen by screen.

Home mixer
Favourites
Sleep timer

[ 05 ] Tech stack

Built native, built to play all night.

KotlinJetpack ComposeMedia3 / ExoPlayer Foreground media serviceDataStoreGoogle AdMob Crash reportingFigma
[ 06 ] ResultsLive

Published on Google Play, with ongoing updates.

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Store rating — add the current figure from Play Console.

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Installs — add the current figure from Play Console.

Offline

Every sound plays without a connection — no sign-up needed.

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