Dead-simple start & stop
Giant START. Press-and-hold STOP so a wet hand can't ruin the run. Timer survives backgrounding, screen lock, and force-quits.
Track the chill.
Honor the heat.
ChillSeeker is a cold plunge and sauna session tracker for iPhone and Apple Watch. Local-first. No account. No analytics. Just clean tracking and honest suggestions.
Requires iOS 17 or later · iPhone, with optional Apple Watch
Everything you need.
Nothing you don't.
Cold plunge & sauna
One engine, two modalities, separate stats and streaks. Switch in a tap.
Apple Watch ready
Live heart rate during your session. Watch-side companion ships in a follow-up release.
Breathwork on tap
Box, 4-7-8, Power Breaths, Calm Down, Coherent. Attach a length-matched warm-up to any session.
Guided meditation
Six original spoken-guidance scripts. No streaming. No licensed audio. Bring your own ambient tracks too.
Honest insights
Eight Swift Charts: sessions over time, duration, temperature, heart rate, HRV, mood delta, time of day, day-of-week heatmap. Plain-language insights, never medical claims.
Goals & streaks
Weekly, monthly, or all-time goals per modality. One rest day per week before a streak breaks — the rule is right there in Settings.
Badges that mean something
Streaks, exploration, endurance, consistency. They unlock at thresholds that earn them, with a real celebration moment.
Reflection journal
Quick post-session comment or a longer entry with mood and a photo. Link to a session or stand alone.
Smart suggestions
Rules-based, conservative, and progressive. Eases beginners in. Backs off when recovery signals (HRV, perceived difficulty, feeling-after) trend poorly. Never prescriptive.
Apple Health
Reads heart rate, HRV, and body temperature. Writes completed sessions as workouts and breathwork as Mindful Minutes.
Local-first, by design
Everything lives on your device. No account. No analytics. No third-party trackers. Export your data anytime as JSON or CSV.
Your data stays on your device.
ChillSeeker has no servers. There's no account to create, no email to enter, no analytics SDK, no third-party tracking. Your sessions, journal entries, and health data are stored locally in SwiftData. Apple Health integration is read/write on-device only.
A word on safety.
ChillSeeker is a general-wellness tracker. It is not a medical device, and the information and suggestions in the app are not medical advice. Cold-water immersion and sauna use carry real physiological risks. Consult a qualified doctor before starting either practice, especially if you have a heart condition, blood pressure issues, are pregnant, or have any ongoing medical concern. Never plunge alone. Stop immediately and seek help if you feel unwell.
The app is intended for users aged 17 and over. Full disclaimers, risk information, and limitation of liability are presented during onboarding and available any time in the app under Settings → Disclaimers & Safety.
Ready to track the chill?
ChillSeeker is launching on the App Store soon. Watch this page for the download link.
Get launch notice →