Sauna Tracker Pro vs Caffinity

Every session gets a score. SaunaTracker Pro measures the effectiveness of your heat and cold sessions using real-time physiological signals from Apple Watch. Your HCEI effectiveness score quantifies session quality from heart rate, HRV adaptation, blood oxygen, exposure duration, and transition patterns — giving you a clear number for every session. No more guessing whether your protocol is working. Heat and cold exposure is one of the most powerful recovery tools available. But without measurement, you're flying blind. Generic workout apps ignore thermal sessions. Manual logging misses what matters. SaunaTracker Pro was built to solve this — a purpose-built system for tracking, scoring, and understanding your heat and cold exposure. SCORE EVERY SESSION Your HCEI (Heat-Cold Exposure Index) effectiveness score combines five physiological signals into a single 0–100 rating. It calculates live on Apple Watch during Watch Mode sessions and is scored post-session from enriched HealthKit data in Light Mode. Five weighted components — exposure intensity, HRV adaptation, heart rate reactivity, transition quality, and safety adherence — give you a complete picture of session quality. TRACK EVERY PROTOCOL Five exposure types — Sauna, Steam, Cold Plunge, Cold Shower, and Relax — each with distinct tracking. Multi-phase sessions capture your full heat-cold-rest protocol in a single structured session with per-phase timing. Switch between exposure types mid-session. Track contrast therapy as one continuous workout. LIVE BIOMETRICS FROM APPLE WATCH Heart rate, blood oxygen, and HCEI stream in real time from Apple Watch to iPhone during every session. See your metrics update live on both devices. Light Mode enables iPhone-only sessions when your Watch is unavailable — enriched post-session with data from any HealthKit source. DEEP POST-SESSION ENRICHMENT Sessions automatically enrich with recovery data from HealthKit — HRV before and after your session, sleep quality the night before and after, blood pressure trends, body temperature, blood glucose, and mood. Data from any connected wearable feeds into your session record. INSIGHTS ACROSS SESSIONS Personalised session analysis surfaces what drove your score and how your patterns evolve. Weekly summaries identify trends across multiple sessions. See how your protocol shapes your recovery over time. Available with a subscription. TRENDS, GOALS & PROGRESS HCEI trend charts show your score trajectory across weeks and months. Set goals for weekly frequency, session duration, cumulative minutes, heart rate zones, modality mix, or progressive challenges. Track streaks. See your consistency on the calendar. WIDGETS, SIRI & LIVE ACTIVITIES Home Screen and Lock Screen widgets show session data at a glance. Dynamic Island displays live metrics during active sessions. Siri Shortcuts let you start and control sessions hands-free. Interactive widgets for quick session control. PRIVACY & YOUR DATA Core session data stays on your device and in your iCloud. If you opt in to Premium AI Coaching, session metrics are processed by the SaunaTracker backend and Amazon Bedrock (Anthropic Claude) within AWS Australian regions to generate insights — your name and email are never sent, and your data is never used to train AI models. Full data export as JSON. GDPR and CCPA-compliant data deletion. No advertising identifiers and no cross-app tracking. Reads and writes structured workouts to Apple HealthKit. FREE & SUBSCRIPTION Free includes full session tracking, live HCEI scoring, goals, widgets, and Apple Watch integration. A subscription unlocks detailed impact analysis (HRV, sleep, blood pressure, temperature, mood), intelligent session insights, guided breathing on Apple Watch, and expert mode. Built for heat and cold. Every session scored. By using SaunaTracker Pro, you agree to Apple's standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Caffinity is the caffeine intake monitor that finally tells you when your coffee stops affecting your sleep. Track every cup. Watch your real-time mg level rise and fade. Predict your crash before it hits — and stop drinking past your bedtime. Most coffee tracker apps just count cups. Caffinity uses real caffeine half-life science — your weight, sensitivity, and last dose — to show you exactly how much caffeine is still active in your body, minute by minute. If you've ever lay in bed at 1 AM wondering whether your afternoon cold brew is keeping you up, Caffinity is the app you've been waiting for. ▸ REAL-TIME CAFFEINE INTAKE MONITOR Log any coffee, tea, espresso, latte, energy drink, or soda in two taps. Watch your active mg rise instantly and fade as your body metabolizes it. ▸ PERSONALIZED HALF-LIFE TIMELINE A live curve shows caffeine leaving your body based on your weight and sensitivity. See your energy crash before it hits. ▸ SLEEP IMPACT PREDICTION The number nobody else gives you: how much caffeine will still be active when you try to sleep tonight. Beat insomnia before it starts. ▸ SMART BEDTIME ALERTS Set a personalized daily limit and a caffeine cutoff time. Get a heads-up before you cross it — not after. ▸ STATE-BASED FEEDBACK Green when you're in the sweet spot. Yellow when you're approaching your limit. Red when it's time to stop. One glance tells you everything. ▸ WEEKLY ANALYTICS & PATTERNS Spot the days, drinks, and times that wreck your sleep. Discover habits you'd never notice on your own. ▸ HABIT STREAKS & DAILY CHALLENGES Stay under your limit. Cut off coffee by 2 PM. Build streaks. Earn XP. Healthier morning routines, one day at a time. ▸ HYDRATION COMPANION Caffeine dehydrates. Caffinity tracks water alongside coffee so you stay balanced all day. ▸ MASSIVE DRINK DATABASE Pre-loaded caffeine values for every popular coffee, tea, espresso, latte, mocha, matcha, energy drink, and soda. Two-tap logging. ▸ FIVE BEAUTIFUL THEMES Dark Coffee. Cream Latte. Neon Energy. Midnight Blue. AMOLED Black. Make Caffinity look like yours. WHO CAFFINITY IS FOR - Coffee lovers who refuse to trade sleep for caffeine - Light sleepers and the caffeine-sensitive - People managing caffeine for focus, anxiety, or energy - Wellness-minded folks building healthier morning routines Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/