Your music, front and centre.
The album art up front, in the layout you like best.
A whole new firmware for your HiBy player. Faster, cleaner, and made for your music.
Free and open source


The album art up front, in the layout you like best.
Lyrics that follow along with every song.
All your music, neatly organised and always up to date.
Tune the sound to your headphones and your taste.
Your favourite services, radio and podcasts, right on the player.
Headphones, speakers and your phone, without a cable.
SonixLink for Android
Browse everything on the player from your phone and play it there. The app finds the player by itself on your Wi-Fi, or connects over Bluetooth when you are out. The phone's volume keys change the player's volume, and the lock screen shows what is playing.
Listen to a book, read one, play a game. All without leaving your player.
Chapters, bookmarks, speed and series, with your place kept for every book.
EPUB 2 and 3, three reading themes, page turns and bookmarks.
Game Boy and Game Boy Color, with save states, palettes and shaders.
30 to 250 BPM, seven time signatures and tap tempo.
Rename, move, copy and delete, and open pictures and text files.
QWERTY, QWERTZ, AZERTY and Russian, as a full keyboard or a T9 keypad. Hold a letter for its accents, hold 123 to switch layout.
Play from your iPhone, Mac or Android phone through the player.
Plays made offline are sent the next time you connect.
Connect the player to a computer and it becomes its sound card, up to 384 kHz. Or plug a USB DAC or USB-C headphones into the player.
One for music, one for audiobooks and one for podcasts.
Stop charging before 100% to make the battery last longer.
The boot logo follows your accent colour, or use your own picture. The screensaver shows the cover of what is playing, or your photos.
Give each button the action you want, and use your headphones' remote.
No silence between tracks, or a fade of 1 to 10 seconds.
The same SonixOS on both, made for each one's screen, buttons and DAC.
r3proii.uptr1.uptSonixOS is free and open source, made with the help of people who contribute to it. If you enjoy it, you can support its development.