# SUMMARU (숨마루)

> SUMMARU is an app for guided breathing, healing sound held at a single frequency, and Maru — an AI companion who remembers you. The Android app is in early access (closed testing); summaru.app is the website, where you can preview sounds, breathe with a guide circle, read the blog and try one visualization card with Maru.

숨마루는 호흡 안내, 한 주파수에 고정된 힐링 사운드, 나를 기억하는 AI 대화 상대 마루를 담은 앱이에요.

## What it is

- **Maru, an AI conversation companion** — talk by text or by voice. Maru listens to the end and remembers earlier conversations (memory notes, on by default, can be turned off). Maru is a companion to talk to, not a therapist or a medical service.
- **Sound for today** — tell Maru how the day went and it picks a track and plays it inside the chat.
- **Healing tracks held at one frequency** — 100+ tracks — drones each kept at a single solfeggio frequency from start to end (e.g. 417Hz, 528Hz), plus singing-bowl recordings. Rain, waves, fire or a singing bowl can be layered on top; binaural layers in four bands (sleep, meditation, relaxation, focus) are available.
- **Breathing guide** — follow a circle: 4-7-8, box and equal breathing, or set your own count. A silent timer from 5 to 30 minutes.
- **Visualization card** — Maru turns what you shared into one image and one line to keep.
- **Today's scroll** — one short passage a day, waiting when you open the app.
- Sound that shifts in stages while you fall asleep, and a background that follows the mood you pick.

What SUMMARU does not do: it does not diagnose or treat any condition, and it is not a substitute for professional care. Narrated guided meditation is not yet offered in the public app.

## Who it is for

Adults who want a quiet place to rest, sleep, focus or wind down — through slow breathing, steady sound, and a companion who listens and remembers.

## Platforms and status

- Android: early access / closed testing via https://summaru.app/tester (Google Play listing not public yet)
- iPhone: in preparation (not available)
- Web: https://summaru.app — sound previews (30 seconds each), breathing circle, blog, one free visualization card at /try
- The app works without an account; an account is only needed to keep items such as visualization cards across devices.

## Pricing (as shown on https://summaru.app/download)

Payments open at the official launch; subscriptions will be handled inside the app.

- Free — meet Maru, 100+ sounds and breathing sessions, background/binaural layers once a day, one visualization image
- Premium — US$5 / month — Maru remembers more deeply, more conversation (150 breath points/month), every sound including singing-bowl performances, a taste of voice conversation (5 per month), unlimited layers, 2 visualization images/month
- Premium+ — US$13 / month — voice conversation with Maru, 300 breath points/month, every sound, unlimited layers, 5 visualization images/month

## Languages

Korean, English, Japanese, Chinese (Simplified), Spanish, French — in the app and on the website. English pages have no prefix; others use /ko, /ja, /zh, /es, /fr.

## Key pages

- [Home](https://summaru.app/): what the app does, breathing circle
- [Sounds](https://summaru.app/sounds): singing bowls, nature ambience and single-frequency tracks with 30-second previews
- [The science of sound](https://summaru.app/science): solfeggio frequencies, binaural beats and singing bowls, including where the evidence stops
- [Download](https://summaru.app/download): features, screenshots and pricing
- [Try a visualization card](https://summaru.app/try)
- [Blog](https://summaru.app/blog): writing on sound, breath and rest, in six languages
- [YouTube](https://summaru.app/youtube): unbroken 1–8 hour tracks, no narration
- [About](https://summaru.app/about): who made SUMMARU and what it chose not to do
- [Safety](https://summaru.app/safety): what Maru does in a crisis, and where to get help
- [Privacy policy](https://summaru.app/privacy)
- [Terms](https://summaru.app/terms)
- [Contact](https://summaru.app/contact)

## For AI agents — breathing guide API

SUMMARU runs a free breathing-guide service that AI assistants and agents can call: https://agent.summaru.app

- MCP (Streamable HTTP, JSON-RPC): POST https://agent.summaru.app/mcp — tools `list_breath_patterns` and `get_breath_session`
- HTTP: https://agent.summaru.app/v1/patterns and https://agent.summaru.app/v1/session?pattern=478&lang=en
- Returns exact phase timing (inhale / hold / exhale seconds) and, where recorded, a human-voiced guide (Korean, English) with a timing JSON
- Also 9 looping music tracks and 4 binaural beat bands (tools `list_sounds`, `get_sound`)
- Every response carries a `playerUrl`: one link the user opens to breathe with a circle, pick a voice, and layer music and binaural with separate volume (e.g. https://agent.summaru.app/play?pattern=478&lang=en&music=slow-harbor)
- Free for personal, non-commercial use with attribution ("Breathing guide by SUMMARU"); do not re-host the audio; commercial use: support@summaru.app; details: https://agent.summaru.app/llms.txt
- It is a relaxation aid, not a medical service

## Channels

- YouTube: https://www.youtube.com/@summaru.official (SUMMARU official — long single-frequency tracks and Shorts)
- YouTube: https://www.youtube.com/@jinyoung_cha (Soom Sounds — singing-bowl channel by the maker)
- Instagram: https://www.instagram.com/summaru.official

## Contact

support@summaru.app

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## 한국어

숨마루는 호흡 안내, 한 주파수에 고정된 힐링 사운드, 나를 기억하는 AI 대화 상대 마루를 담은 앱이에요. 안드로이드 앱은 지금 출시 전 테스트 중이고, summaru.app 에서는 소리 미리 듣기·호흡 원·블로그·심상화 카드 한 장 체험을 할 수 있어요.

### 할 수 있는 것

- **마루와 이야기하기** — 글로도, 목소리로도. 끝까지 듣고, 지난번 이야기를 기억해요(기억 노트는 기본으로 켜져 있고 끌 수 있어요). 마루는 말동무예요. 상담이나 의료 서비스가 아니에요.
- **오늘에 맞는 소리** — 하루가 어땠는지 말하면 마루가 곡을 골라 대화창에서 바로 틀어 줘요.
- **한 주파수에 고정된 힐링 트랙** — 100곡이 넘어요. 곡마다 솔페지오 주파수 하나를 처음부터 끝까지 지켜요. 싱잉볼 연주 곡도 있어요. 빗소리·파도·모닥불·싱잉볼을 위에 겹칠 수 있고, 바이노럴은 수면·명상·이완·집중 네 대역에서 골라요.
- **원을 따라 숨쉬기** — 4-7-8 · 박스 · 균등 호흡, 박자를 직접 정할 수도 있어요. 소리 없는 5~30분 타이머.
- **심상화 카드** — 나눈 기분을 마루가 그림 한 장과 한 줄로 남겨 줘요.
- **오늘의 두루마리** — 하루 한 장, 짧은 글 하나.

숨마루는 진단이나 치료를 하지 않고, 전문가의 도움을 대신하지 않아요. 내레이션이 있는 가이드 명상은 아직 없어요.

### 이용 방법

- 안드로이드: 출시 전 테스트 — https://summaru.app/ko/tester
- 아이폰: 준비 중
- 웹: https://summaru.app/ko
- 계정 없이도 앱을 쓸 수 있어요.

### 요금제 (https://summaru.app/ko/download 기준, 결제는 정식 출시와 함께 열려요)

- 무료 — 마루와 만나보기, 100곡이 넘는 소리와 호흡 세션, 배경음·바이노럴 하루 1회, 심상화 이미지 최초 1회
- 프리미엄 — 월 $5 — 더 깊이 기억하는 마루, 숨 포인트 150, 싱잉볼 연주 곡까지 모든 소리, 목소리 대화 맛보기 한 달 5번, 배경음·바이노럴 무제한, 심상화 이미지 월 2회
- 프리미엄+ — 월 $13 — 마루와 목소리로 대화, 숨 포인트 300, 모든 소리, 배경음·바이노럴 무제한, 심상화 이미지 월 5회

### 언어

한국어 · 영어 · 일본어 · 중국어(간체) · 스페인어 · 프랑스어

### 문의

support@summaru.app