Ultra Cold Plunge & Sauna

Ultra Plunge is the ultimate Apple Watch and iPhone app for cold plunges, saunas, steam rooms, ice baths, contrast therapy, and more. Build consistency, track real progress, and get more out of every recovery session — right from your Apple Watch or iPhone Real-Time Metrics on Your Wrist • Live cold plunge water temperature (Apple Watch Ultra & Series 10+) • Sauna & steam room air temperature + humidity (optional Bluetooth sensor) • Create your own activities and routines. Perfect for combining activities, such as contrast therapy, or new adding activities • Active & resting heart rate • Real time Heart Rate chart and Strain indicator • Built-in timer & stopwatch • Pressure indicator for hyperbaric chamber Smarter Sessions with AI-Powered Insights • Dashboard with charts and heat map, showing trends and progress • AI-powered coach provides insight on progress and consistency over time • Guided breathing with customizable breathing patterns on your watch • Personal goals, streaks, calories, and progress tracking • Estimated sweat loss and heat load for Sauna sessions • Helpful tips and recovery insights to support your routine • View and share your weekly, monthly and yearly achievements Widgets, Sharing & Integrations • Apple Watch widgets for live session time & progress • Share sessions to Strava or social media • Track long-term progress across cold, heat, and recovery sessions Track Every Session • Cold Plunge, Ice Bath, Polar Plunge, Cold Shower • Sauna, Steam Room, Hot Plunge • Contrast, Cryotherapy, Float Tank, Red Light Therapy, Hyperbaric Chamber Free Trial & Subscription Enjoy a 7-day free trial with full, ad-free access. After the trial, a subscription is required. Subscriptions renew automatically unless canceled at least 24 hours before the end of the billing period. You can manage or cancel your subscription anytime in your Apple Account settings. Why Ultra Plunge? Ultra Plunge isn’t just a tracker — it’s your personal wellness training partner. Whether your goal is resilience, circulation, mental toughness, or simply building a habit, Ultra Plunge helps you stay consistent and see real progress over time. Turn everyday routines into a powerful wellness practice. Download Ultra Plunge today and begin transforming yourself from everyday human to wellness warrior. FAQ Q: Do I need an Apple Watch? A: Ultra Plunge is best when used on an Apple Watch, but also works on an iPhone or iPad Q: Can Ultra Plunge measure water temperature? A: Yes, with an Apple Watch Ultra or 10+. Q: How does Ultra Plunge measure sauna temperature and humidity? A: With an optional Bluetooth temperature sensor, available at: https://ultraplunge.app Q: Can I use Ultra Plunge with Strava? A: Yes, you can automatically share sessions to Strava. Q: Is my data secure? A: All your data is stored in your iCloud account, not on our servers. The AI Coach uses a local model, none of your personal data is shared with an online AI service. Q: Can I track multiple types of sessions? A: Yes — cold, heat, and recovery sessions are all supported. Q: Does Ultra Plunge track heart rate and calories? A: Yes. Q: Does Ultra Plunge estimate sweat loss? A: Yes. Q: Is there guided breathing included? A: Yes, with adjustable breathing patterns on Apple Watch. Q: Is there a free trial? A: Yes, a 7-day free trial is included. Q: Can I cancel my subscription anytime? A: Yes, in your Apple Account settings. Safety Disclaimer: Always consult a healthcare professional before starting new wellness activities involving extreme temperatures. Avoid using your watch outside of Apple’s recommended operating temperature range. AI Coaching provides general wellness insights and motivational support — not medical advice. AI features use Apple Foundation Models and operate entirely on your device. Privacy Policy: https://ultraplunge.app/privacy Terms of Service: https://ultraplunge.app/terms