BiSonus

PlakhinLabs

In-app purchases

About this app

isten to music, audiobooks, podcasts, or meditations with nature sounds, white noise, or ambience. BiSonus is a dual player that lets you control your track and background independently: adjust the volume, pause either channel, and set a sleep timer to pause all device audio and close the app automatically.

Play gentle rain with an audiobook, forest sounds during meditation, or white noise for work and sleep. BiSonus works offline and uses your local audio library.

Your sound - your mix
- Two independent audio players: a main track and background sound
- Separate volume and playback progress for each channel
- Quickly pause your track or background without stopping the other
- Play only the track, only the background, or both together
- 8 built-in background sounds: rain, forest, campfire, white noise, and more
- Add your own audio files: ambient sounds, ASMR, waves, nature recordings, or music
- Choose folders on your device and automatically refresh your library on launch

Listen alongside other apps
Start a background sound in BiSonus, then open YouTube, a music service, podcast app, or any other app. BiSonus does not replace their audio - it adds an ambient background to whatever you are already listening to.

Sleep Timer

Set a timer - it will pause all audio playing on your device, including audio from other apps, and then close BiSonus. Fall asleep to music, audiobooks, or nature sounds without worrying that they will play all night.

BiSonus Free
The free version includes all the essential player features:
- Play a main track and background sound at the same time
- Adjust the volume and pause each channel independently
- Use built-in background sounds and add your own files
- Scan selected folders on your device
- Listen alongside audio from other apps
- Use the Sleep Timer
- Works offline with no required sign-up
In Free, playback positions, history, and settings are not saved after closing the app. Statistics, Favorites, and accent color selection are available in BiSonus+.

BiSonus+
BiSonus+ is for anyone who regularly listens to long meditations, lectures, podcasts, audiobooks, or uses background sounds every day:
- Save the exact playback position for both your main track and background sound
- Remember progress for every track
- Add favorite tracks and backgrounds for quick access
- View personal statistics: listening time, daily streaks, and most-played tracks
- Choose your preferred accent color
- Support BiSonus development and future features

BiSonus brings your audio, nature sounds, and favorite apps together in one seamless mix!