SwissZen · Stillcraft

What's inside

Everything SwissZen does.

Guided breathing

A calm sphere grows on the inhale and settles on the exhale. Box 4‑4‑4‑4, Calm 4‑7‑8, Coherent 5‑5, for 2, 5 or 10 minutes.

Wim Hof rounds

Power breaths, an open-ended hold on empty lungs with a stopwatch, a 15‑second recovery breath. Four levels.

Mindfulness bell

Rings with the app closed: at random every 15–90 minutes, at a fixed interval or at set times, with quiet hours.

Micro-practices

5‑4‑3‑2‑1 grounding, body scan, notice three things, start-of-day pause, gratitude minute.

Meditations

Five timed sits of 5–20 minutes: breath anchor, loving-kindness, mountain, walking, sleep wind-down.

One-line journal

One line a day against a rotating prompt, a week view, and an Echo: a line you wrote weeks ago, brought back.

Screens

Captured in SwissZen.

SwissZen: Home — **Home**Tools fan out of the knife handle.

SwissZen: Breathe — **Breathe**Pick a Wim Hof level.

SwissZen: Wim Hof session — **Wim Hof session**Breath 2 of 35. Let go.

SwissZen: Practices — **Practices**Short pauses and longer sits.

SwissZen: Bell — **Bell**Set times and quiet hours.

Wim Hof levels

Level	Rounds	Breaths / round	Pace in / out	Hold targets
Beginner	3	30	2.0 s / 1.6 s	0:30 → 1:00 → 1:30
Medium	3	30–35	1.6 s / 1.3 s	1:00 → 1:30 → 1:30–2:00
Advanced	4	35–40	1.4 s / 1.0 s	1:00 → 1:30 → 2:00 → 2:30
Expert	4–5	40–50	1.1 s / 0.8 s	1:30 → 2:00 → 2:30 → 3:00+

Get it

Get SwissZen.

Install

Version: v1.0.1
File: SwissZen-v1.0.1.apk
Requires: Android 8.0 (API 26) or newer
License: MIT

Download the APK on your phone.
Open it and allow installs from this source when Android asks.
Turn on the bell if you want the app to find you during the day.

Always do breathing exercises sitting or lying down. Never in or near water, never while driving. If you have a heart condition or epilepsy, are pregnant or unsure, talk to a doctor first.

Download APK All releases

Build from source

JDK 17+ (Android Studio's bundled JBR works) and the Android SDK.

git clone https://github.com/bigdevwhale/SwissZen.git
cd SwissZen
./gradlew testDebugUnitTest   # unit tests
./gradlew assembleDebug       # debug APK
./gradlew installDebug        # to a connected phone

Good to know

Questions people ask.

Does the bell ring when the app is closed?

Yes. It uses Android alarms, survives reboots and time changes, and needs no exact-alarm permission. Tap “I paused” on the notification to note what you noticed.

Where does the breathing sound come from?

It's synthesised on the phone: white noise through a sweeping filter, so it always matches the tempo of your level.

Is anything collected?

No accounts, no network, no analytics. The journal, bell history and session log stay on the device.