ZenSauna: Auto Sauna & Cold Plunge Tracker

[ ZenSauna - Heart Rate Auto-Tracker for Sauna & Cold Plunge ] ZenSauna is a biofeedback app designed to fully free your mind and let you immerse yourself in sauna, cold plunge, and rest sessions. Forget about manual buttons and timers. Simply trust the subtle wrist vibrations and heart rate tracking to guide you into ultimate relaxation. --- [ Key Features ] - Completely Hands-Free Auto Phase Detection Analyzes real-time heart rate trends to automatically detect transitions: Sauna - Cold Plunge - Rest. A 5-second countdown with gentle vibration notifies you before automatically advancing the phase. - Personalized 100-Point Score Calculates your recovery score out of 100 based on your Resting Heart Rate (RHR) stored in Garmin, giving you a clear metric of your autonomic balance and session effectiveness. - High-Contrast Large Text Display Clean, large-font interface optimized for dark environments like sauna rooms and dimmed relaxation areas. Minimalist design with zero bloated menus. - Full Garmin Connect Sync & Graphs Saves natively as a Garmin Activity. View your 100-point score, set breakdowns, and phase transition graphs overlaid on your heart rate timeline in Garmin Connect. --- [ Basic Controls ] * Start: Launch the app on your watch to start tracking. Your phone can stay in your locker. * Cancel Detection: Press the BACK button during the prompt to cancel a false detection. * Manual Switch: Tap the screen or press the SELECT button anytime to advance to the next phase manually. * End Session: Press the BACK button to bring up "End session?", then press SELECT to save and exit. --- [ License & Free Trial ] - Includes a 7-day (or 5-session) full-featured free trial. - Upgrade to the full version securely via KiezelPay (Kpay). --- [ Important Disclaimer ] * Garmin devices have an official operating temperature range of -20C to 60C (-4F to 140F). Sauna use exceeds this and may void your hardware warranty. * The developer assumes no liability for device damage, malfunction, data loss, or health issues resulting from sauna use or app usage. * Please use this app at your own risk and monitor your personal health and device temperature closely.

[Version 1.0.0 - Official Release]