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.