Sereno field guide
Your body, translated.
Sereno reveals what your body noticed today and what the research says it means.
Built around Apple Watch and Apple Health, Sereno turns stress signals, sleep, activity, and daily context into plain-language physiology you can actually read and trust.
Your stress, scored
A single 0-100 score built from 20+ signals: biometrics, sleep, activity, and context. Updated throughout the day. No guesswork, just data from your life.
Learn how scoring works
Breathe through it
Guided box breathing, 4-7-8, and custom patterns that measurably lower your stress score. Follow along, feel the difference, see the change.
Wake up informed
See how your sleep quality shapes tomorrow's stress. No extra device needed, just your Apple Watch working quietly through the night.
Patterns you'd miss
Weekly readings surface the patterns between your meetings, sleep, movement, and stress so the signal becomes legible.
How it works
Three steps to understanding your stress.
Wear
Wear your Apple Watch as usual. Sereno reads the signals already flowing through Apple Health.
Read
Open Sereno to see what changed, what stood out, and how your day is shaping your stress.
Reset
When stress rises, start a guided reset on iPhone or Apple Watch and regain your footing.
When stress gets intense
Sereno stays with you in tough moments
When your score reaches elevated levels, Sereno shifts its interface to focus on what matters: a guided breathing exercise to help you regain composure, and quick access to crisis support resources if you need them.
Immediate breathing guidance with visual and haptic cues to help slow your breathing pace
Crisis support hotlines for 12 countries, available offline and accessible in one tap
No diagnosis, ever. Sereno provides awareness tools, not medical advice
Sereno is a wellness tool, not a medical device. It does not diagnose, treat, or prevent any medical condition. If you are experiencing a mental health emergency, please contact your local emergency services or a crisis helpline directly. Breathing exercises are general wellness techniques and are not a substitute for professional medical or psychological care.
From our beta community
500+ beta testers. Real stories, real signal.
I knew meetings were wearing me down, but Sereno showed me it was the back-to-back blocks without any recovery time. Once I left space between calls, my afternoons changed.
Deniz K.
Product Manager · Apple Watch
Apple Watch had the data already. Sereno is the first app that translated it into something I could actually read instead of just another score ring.
Merve A.
Operations Lead · Apple Watch
The guided resets are what made it stick for me. I can feel the shift, then I can see the shift. That changes how seriously I take the signal.
Aylin T.
Freelance Designer · Apple Watch
What I like is the tone. It explains what changed, cites the mechanism, and stops. It does not talk to me like a coach or a therapist.
Can E.
Research Analyst · Apple Watch
My therapist and I finally had something concrete to look at together. The weekly reading gave structure to conversations that used to stay vague.
Sofia L.
Graduate Student · Apple Watch
I do not need another wellness app telling me to feel better. I needed one that could show me what my body was doing while I was still pretending I was fine.
Selin Y.
Creative Director · Apple Watch
Feedback collected during closed beta (2025-2026). Names shortened for privacy.