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Patterns, History, Settings, Recommendations — everything on your wrist.
World Peace in Us · Soulonaut
16 evidence-based techniques, felt through the Taptic Engine — eyes closed, no screen.
From the first calm breath to deep, measured stillness.
Now in closed beta · testers & breath-coach partners welcome
Haptic pulses rise for inhale, fall for exhale.
Close your eyes. Just feel.
Holding your breath during Tummo? Double Tap ends the retention.
Eyes stay closed. Fingers decide.
The App
Just like on the Watch — swipe left and right to explore.
Patterns, History, Settings, Recommendations — everything on your wrist.
Flower of Life guides your breath. Haptics pulse on your wrist. Eyes closed.
Apple Music natively integrated. Play your favourite relaxation music during any breathing session — controlled from your wrist.
Go deeper
From calm to fire. Grounded in breathing physiology — evidence-based or design-inspired, always tagged.
Tummo burns orange. Coherence glows green. You feel the difference before you see it.
Build your own breathing pattern. Name it. Use Tummo as base. Make it yours.
Your breathwork on your wrist.
The details where you can actually read them.
Your body
Most breathwork apps show a timer. CARLON shows what your body actually does — on your wrist and on your iPhone.
Your heart rate drops during breath holds. The dive reflex — visible on your wrist.
Heart and breath in sync. Phase, frequency, depth — measured after every session.
Round by round, you hold longer. +25% improvement — tracked on your wrist.
Every heartbeat plotted. See exactly where your nervous system shifted.
Personal coaching: HRV in context, breath synchronicity, and what to do next.
Every session stronger. 30-session trend, personal best, body adapting.
The science
Every technique explained. Timings grounded in slow-breathing science where evidence exists — the rest design-inspired and labelled.
Every pattern explained — what it does, why it works, which studies back it.
HRV Today. 7-day trends. 20 sessions tracked. Your nervous system's report card.
CARLON doesn't just measure — it teaches. Every metric explained in context.
For coaches & trainers
Build a pattern for a client's evening wind-down — set the phases, the rounds, the recovery, your colour, your coaching note. Name it. Brand it. Send a link. They open it on their Watch and feel your guidance, eyes closed.
A 6-key timeline to compose any pattern.
Phases, rounds, recovery, your colour, your coach note.
Clients open your preset in one tap — no export needed.
Chain presets into multi-session courses.
The studies behind every pattern, for your clients.
Early access · help shape the coach tools · founding-partner recognition
For researchers
Add a Polar H10 and CARLON captures what your breathing does to your heart at research grade — beat-to-beat intervals, artifact-filtered, with an honest signal-source badge. Every session exportable, methodology included. Study what your breath actually does.
Beat-to-beat RR, artifact filter, honest signal-source badge.
Heart rate & HRV on your wrist as you breathe — see the effect in real time.
Established physiology — every claim tagged evidence-based or design-inspired, never marketing.
RMSSD, Poincaré SD1/SD2, Baevsky stress index, DFA-α1.
JSON / CSV / Markdown with methodology + SHA-256 integrity.
A wellness product, not a medical device. Not intended to diagnose, treat, cure or prevent any disease.
Origin
Jan & Carina · Founders of Vitalkultur
When our son Carlon was born on a January night in 2026, breathwork became more than a technique — it became the way we stayed grounded together.
We couldn't find an app that matched what breathing actually feels like. So we built one during night shifts — testing thousands of haptic patterns to find the perfect rhythm for every breath.
One night, the family was asleep. I put CARLON on the lowest haptic level — barely there, just a whisper on my wrist. Coherence breathing, 5.5 breaths per minute. The vibration was so subtle that I had to listen for it. And that's exactly what pulled me out of my head. No thoughts about code. No plans for tomorrow. Just the faintest pulse, rising for inhale, falling for exhale. I fell asleep mid-session.
That was the moment I knew it works. Not because of the data — but because I stopped thinking and started breathing. Named after our son, because freedom is in every breath.
The beta
Full access for a small group of selected testers — before CARLON goes public.
Currently in closed beta · we reply personally
Questions
CARLON is in closed beta. Tell us a little about you and we'll send an invite — we read and reply to every message personally.
Or just write us: jan@vitalkultur.com
