KEYPLE Portfolio

Fade: Relax & Sleep

A Flutter sleep and focus app for iOS and Android with animated themes, ambient sound mixing, offline playback, and background audio.
  • Flutter
  • Dart
  • Riverpod
  • just_audio
  • audio_service
  • Hive
  • RevenueCat
Fade: Relax & Sleep project cover

Project overview

An immersive soundscape app that combines atmospheric visual themes with high-quality ambient audio for sleep, rest, and focus. Users can mix individual sounds, save personal soundscapes, use a sleep timer, and continue listening in the background or offline.

Challenge

The experience had to play layered ambient sounds without interruption while keeping themed animation, per-sound volume controls, background playback, and offline use stable and intuitive.

Solution

We built the themed Flutter interface with just_audio and audio_service, managed playback and timers with Riverpod, and enabled users to balance and save custom soundscapes.

Result

Fade launched on iOS and Android with sleep, rest, and focus modes, offline playback, and a one-time lifetime premium option.

6 screens