Turn heat and cold into a ritual.
Sauna Assistant helps you build a personal sauna and recovery routine with guided sauna rounds, cold plunges, immersive soundscapes, Apple Watch heart-rate tracking, and detailed wellness insights — all designed specifically for iPhone and Apple Watch.
Whether you're unwinding after a long day, practicing contrast therapy, or building a consistent recovery habit, Sauna Assistant keeps every session beautifully organized and fully private on your device.
GUIDED SAUNA & COLD RITUALS
- Create structured sauna sessions with customizable rounds and countdowns
- Add cold plunges between rounds or start standalone plunge sessions
- Track plunge duration, water temperature, heart rate, humidity, and ambient temperature
- Control sessions from your Apple Watch, Siri, Bluetooth headphones, or the lock screen
- Follow your session at a glance with Live Activities and Dynamic Island — without unlocking your phone
- Pause, resume, and transition naturally between heat and cold without losing your flow
IMMERSIVE WELLNESS EXPERIENCE
- Choose from 16 ambient sauna themes including Ocean, Zen, Forest Walk, Thunderstorm, Winter, and more
- Enjoy immersive background soundscapes and round-specific audio cues
- Switch themes mid-session without interruption
- Receive wellness tips during rest periods between rounds
- Use Silent Session mode when you want complete focus
APPLE WATCH & HEALTH INTEGRATION
- View live heart rate during sauna and cold plunge sessions
- Track heart-rate zones directly on Apple Watch with color-coded feedback
- Save sauna rounds and plunges to Apple Health as Mindful Minutes
- Separate plunge workouts let you see distinct cold-exposure heart-rate data
- Get haptic feedback for countdowns, round transitions, pauses, and session completion
PROGRESS & ACHIEVEMENTS
- Review session history with detailed statistics and trends
- See how heart rate, temperature, and humidity patterns evolve across months
- Build streaks and unlock achievements that reward consistency, endurance, and variety
- Visualize your habit at a glance with a 12-week activity heatmap
- Share beautiful sauna session cards with friends or on social media
SMART SAUNA FEATURES
- Connect HomeKit scenes to automate lights, heaters, or your sauna environment
- Monitor real-time temperature and humidity from compatible HomeKit sensors
- Trigger automations automatically when sessions start, pause, resume, or end
- Log per-round environmental extremes — min, max, and average temperature and humidity
BUILT FOR SAUNA OWNERS
- Manage multiple saunas — home, cottage, gym — under separate profiles
- Log maintenance tasks: stone replacements, heater checks, cleaning, and repairs
- Track maintenance costs and dates per entry
- See sessions and maintenance side by side on a unified timeline
PRIVATE BY DESIGN
- No account required
- No subscriptions
- No analytics or tracking
- All data stays on your device
- Fully functional offline
Sauna Assistant is built for people who want more than a timer — a calmer, smarter, and more intentional sauna and cold-plunge experience.
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