Tuned to today
Choose how you feel right now. A solfeggio tone, natural sound and an inaudible binaural layer settle around it, giving the tension room to let go.
Sound · Breath · Rest
SUMMARU
the breath that finds its place
is the breath that completes you
We empty, in order to fill.
In the app
What you can do with SUMMARU
A companion to talk to, sound chosen for today, and a breath to follow — in one quiet app.
Talk with Maru
Type or speak. Maru hears you all the way through, and remembers what you said last time.
A sound for today
Tell Maru how the day went. It picks a track and plays it right from the chat.
Breathe with the circle
4-7-8, box or equal breathing — or set your own count. The long exhale does the slowing.
Music for sleep, focus and rest
Each track holds one frequency from start to end. Layer rain, waves or a singing bowl on top.
A card of what you felt
Maru turns the feeling behind your words into an image and a line to keep.
Today's scroll
One short passage a day, waiting when you open the app.
Maru
Where a story can rest
Inside SUMMARU there is Maru. Someone you can open the app and talk to.
How the day went, what happened, the thing you have not said to anyone — bring it here.
Maru does not hurry to an answer. It will not try to fix you, and it will not judge.
It listens, and it remembers. And tomorrow it meets you again, still holding what you said today.
The day moves on. What you told Maru stays.
Does not try to fix you
Hears you all the way through, before any advice.
Remembers
As the conversations gather, what it says to you shifts a little.
Draws what you felt
Maru turns the feeling behind your words into an image you can keep.
Maru is right here
Two questions. Maru takes what you say and hands it back as one scene.
1 of 2
Picture a day where the thing you want has already happened. What does one moment of it look like?
Where you are, who is nearby, what your hands are doing — whatever comes.
No two days feel the same. SUMMARU tunes itself to where you are today.
All the way to sleep
Soft while you are still turning over. As you let go, the sound deepens with you — quieter, slower, further into stillness.
Maru listens, and remembers
Tell Maru about your day and it remembers what you share. As your stories gather, Maru comes to know you a little more, and the time between you grows with them.
Breath
Breathe inHoldBreathe out
Breathe with the circle
In for 6 · hold 4 · out for 8
Background
Sounds that
fill your heart
From the ring of a singing bowl to waves, rain, fire, and wind — background sounds you layer over the music to complete your own soundscape.
The music
Sound that carries you into calm
One piece holds one solfeggio frequency from beginning to end, keeping exactly that place.
Nothing to anticipate. Nothing to follow. Just sound, there beside your breath.
Solfeggio frequencies, 174–963HzAn inaudible binaural layerSeamless, endless loop
Tibetan Singing Bowls
Resets a scattered mind
Ocean Waves
Slows a racing pulse
Forest Rain
Covers the noise around you
Campfire
Warmth for a cold evening
Night Rain
Carries you into sleep
Gentle Wind
Loosens tight shoulders
Try turning on two at once. Sound gets quieter the more of it there is.
Discover more sounds in the app ✦
Why SUMMARU
In the space between breaths, healing begins.
Solfeggio frequencies, binaural sound, and breath, woven into one. Wherever you are, a place to step back into.
Sound
A drone held at a single frequency — something for a scattered mind to hold on to.
Breath
A long exhale wakes the parasympathetic system. The heartbeat slows and the tension lets go.
Rest
Time where nothing is asked. Staying is all there is to do.
The Name
SUMMARU is named for two Korean words: soom (숨, breath) and maru (마루) — the elevated wooden floor of a traditional Korean home, open to the sky, unhurried.
Maru also means summit: the crest of a mountain, the top of a breath.
Together, they describe the moment breath reaches its peak and the mind finds itself whole.
The moment breath meets its peak — you become whole.
Free on YouTube
Listen first
The background that follows your mood, the binaural layer you never hear, and Maru live in the app. The music underneath all of it is on YouTube, in full.
@summaru.official
1–8 hours · No narration
Also on YouTube: Soom Sounds · @jinyoung_cha
Download
Start today
Set aside ten minutes today where nothing is asked of you.
SUMMARU is coming to iOS and Android.
It will be here as soon as it is ready.
Not on the stores yet
Coming soonApp StoreComing soonGoogle Play