A reading companion app

The world around you goes quiet. The story takes its place.

It starts with the music. Sonder scores the exact book in your hands, in the sound you love, moving with every scene, so the world around you goes quiet and the world of the story rises to take its place.

Now scoring
The Song of Achilles
WISTFUL · SOFT PIANO, DISTANT STRINGS
Salt and Starlight
Vesper & Lane
Ch. 14Est. position
32mThis session
3Tracks
Sonder — a score for every story
son·dernoun

The realization that every passerby is living a life as vivid and complex as your own.

To open a book is to step inside one of those lives. Sonder scores the world you step into, tuning the music to the exact moment you're reading — so the story doesn't just unfold on the page. It surrounds you.

How it works

Open the book. Sonder does the rest.

i.

Teach it your pace

A thirty-second reading-speed check, and you choose the kind of music you love. Sonder learns your pace and keeps up on its own, no fiddling mid-chapter.

ii.

Fill your library

Add as many books as you want. Not in the catalogue? Request it, and Sonder reads the whole story and adds it to your library, ready to open.

iii.

Mark your place

Tell Sonder your book and chapter. It maps the story's emotional arc and moves the music with every scene, so the world around you goes quiet and the story's world takes over.

Ten moods, infinite stories

Music written for the way stories feel.

“The right music doesn't distract you.
It pulls you in deeper.”
The idea behind Sonder
Early access

Be there for the first chapter.

We're opening early access to a first wave of founding readers. Leave your email to claim your seat before the doors widen.

I'll be listening on
You're on the list — we'll write soon. ✦