ColdLog vs PlungeLab

ColdLog – Cold Plunge Tracker One tap. One plunge. All the data you need. ColdLog is the simplest way to track your cold plunge and ice bath sessions on Apple Watch. No complicated setup, no unnecessary features – just start your workout and let your Watch capture everything automatically. DESIGNED FOR APPLE WATCH ULTRA ColdLog is built with Apple Watch Ultra users in mind. Use the Action Button to instantly start your cold plunge session – even with wet hands. Add the watch face complication for one-tap access. Water Lock activates automatically when you enter the water. COMPREHENSIVE DATA COLLECTION Every plunge tells a story. ColdLog captures more data than any other cold plunge app: - Water Temperature – Live readings from Apple Watch sensors - Duration – Precise timing of every session - Heart Rate – Continuous monitoring throughout your plunge with detailed graph - Calories Burned – Science-based calculation using cold-induced thermogenesis research - GPS Location – See where you plunge on the map - Weather Conditions – Outside temperature, humidity, and conditions (Pro) - Workout Route – Sessions appear in Apple Fitness with full route SCIENTIFICALLY ACCURATE CALORIE CALCULATION Unlike other apps that guess your calorie burn, ColdLog uses peer-reviewed research on cold water immersion. The formula accounts for water temperature, session duration, your personal BMR, and post-immersion thermogenesis – that "afterburn" effect when your body continues burning calories after you exit. INSIGHTS & ANALYTICS (PRO) Track your progress with beautiful monthly charts: - Time in Water – See your total cold exposure - Temperature Trends – Track how cold you're going - Heart Rate Patterns – Monitor your body's adaptation - Energy Burned – Visualize your calorie expenditure - Cold Stress Score – Measure your overall cold exposure intensity SEAMLESS SYNC Start a session on your Watch, view details on your iPhone. Everything syncs automatically via WatchConnectivity. All data stays private on your devices and in Apple Health – no accounts, no cloud, no tracking. CAPTURE & SHARE YOUR PLUNGES Add up to 3 photos to each session – build your personal cold plunge album. Frozen lake? Ice hole? Ocean sunrise? Capture those epic moments. Ready to share? Choose from multiple card styles: a clean stats-only card or stunning photo overlays with your session data. Share to Instagram, WhatsApp, or anywhere else. Each card shows your water temperature, duration, weather, and location. KEY FEATURES - One-tap workout start from Apple Watch - Action Button support (Apple Watch Ultra) - Watch face complication for quick access - Automatic Water Lock activation - Timer alerts with haptic feedback (Pro) - Auto-save option for hands-free workflow - Session photo gallery (up to 3 photos) - Custom share cards with photo overlays - Personal notes for each session - HealthKit integration - Celsius & Fahrenheit support - No account required - Offline-first design WHO IS COLDLOG FOR? Whether you're a Wim Hof method practitioner, cold water therapy enthusiast, competitive ice swimmer, or just starting your cold exposure journey – ColdLog helps you track progress and stay consistent. Built by cold plunge enthusiasts who wanted an app that works as simply as stepping into cold water. No bloat. No distractions. Just you, the cold, and your data. FREE TO USE ColdLog is free with all core features – track duration, water temperature, heart rate, calories, and GPS location. History is limited to 3 sessions. Upgrade to Pro for unlimited session history, detailed insights with charts, weather tracking, and timer alerts. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://coldlog.eu/privacy/

PlungeLab turns every cold session into a clear picture of your routine and recovery—not just another streak. Start a session from Apple Watch, or log it manually on iPhone. PlungeLab records duration, temperature, and heart rate, then uses your Apple Health data to help you explore how plunge days align with sleep, HRV, and resting heart rate. TRACK EVERY SESSION • One-tap Apple Watch capture with live heart rate and elapsed time • Automatic water-entry detection and water temperature on supported Apple Watch Ultra models • Two-minute post-session heart-rate recovery measurement • Manual logging for cold plunges, cold showers, open water, sauna, and contrast sessions • Complete history with editing, notes, mood, and perceived intensity FIND YOUR RHYTHM • Weekly cold-minute target and progress ring • Vacation-friendly weekly streaks • Reminders that update when you record a session • Home Screen and Lock Screen widgets, plus Apple Watch complications UNDERSTAND YOUR PATTERNS WITH PRO • Compare HRV, resting heart rate, sleep, and mood on plunge days and rest days • Explore adaptation trends across similar temperatures and durations • Review dose guidance based on your own history • Export your sessions as CSV PRIVATE BY DESIGN No account is required. Session history and Apple Health analysis stay on your devices. RevenueCat processes limited purchase, entitlement, and technical information, but never receives your health or session data. SAFETY FIRST Built-in guidance covers cold shock, afterdrop, and gradual progression. PlungeLab is not a medical device and does not provide medical advice. WORKS WITH Apple Watch Series 6 or later, Apple Watch SE (2nd generation) or later, Apple Watch Ultra, iPhone, and Apple Health. Apple Watch Ultra adds automatic detection and water-temperature capture when available. PlungeLab Pro is available as a monthly or yearly auto-renewing subscription or a one-time lifetime purchase. The yearly subscription includes a 7-day free trial for eligible customers. Payment is charged to your Apple Account when you confirm your purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your App Store account settings. Terms: https://plungelab.app/terms/ Privacy: https://plungelab.app/privacy/