Sauna Assistant

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.