Caffeine Flow vs Koffee

Caffeine Flow is an intelligent caffeine management app that tracks your body's caffeine levels in real time using half-life pharmacokinetics and guides you to the optimal bedtime for uninterrupted sleep. Log your daily caffeine intake from coffee, energy drinks, tea, and soda with ease, and visualize how caffeine flows through your body throughout the day. - Key Features - Science-Based Caffeine Tracking Using the caffeine half-life formula (C = C0 x 0.5^(t/h)), Caffeine Flow precisely calculates your current body caffeine level. Instead of simply tallying intake, it shows how your actual body concentration changes over time with intuitive visual graphs. Sleep Safe Time & Risk Warnings By combining your bedtime settings and caffeine sensitivity profile, the app pinpoints exactly when you should stop consuming caffeine and when it is safe to fall asleep. If you exceed your daily limit or sleep risk thresholds, intuitive warning chips appear directly on the home screen. Personalized Caffeine Profile A quick sensitivity quiz analyzes your metabolism type (Elephant, Human, or Rabbit). Factoring in your weight and special conditions such as pregnancy or adolescence, it automatically calculates your personalized daily caffeine limit. Expanded Asian & Global Drink Database Preloaded with data from major franchises and global brands across Asia (Korea, Japan, Vietnam, China, etc.). We now support official brand-specific cup sizes (e.g., Tall, Venti), making it easier and more accurate than ever to log your exact drink. Intuitive Dashboard View today's total intake, current body level, remaining daily allowance, and sleep safe time all on one screen. A 24-hour caffeine concentration curve lets you predict your caffeine trajectory ahead of time. Weekly/Monthly Deep Insights Go beyond simple charts. Our new Deep Insights feature analyzes your sleep interference index, recommended cutoff times, dependency trends, and unusual intake patterns. Get comprehensive weekly and monthly reports on how your caffeine habits affect your sleep. Home Screen Widgets Check your current caffeine level and estimated sleep readiness time directly from your home screen without opening the app. Smart Notifications Receive proactive alerts when your projected bedtime caffeine level may disrupt sleep. Get immediate notifications when you exceed your daily limit. Secure Data Management All records are stored securely on your device. Backup and restore functionality ensures safe data transfer when switching devices. 9 Premium Themes Choose from 9 aesthetic themes including Warm Beige, Midnight Slate, and Neon Cyber. Customize the app atmosphere to match your personal style. Korean and English Supported Full localization in both Korean and English. Start your science-backed energy management with Caffeine Flow. Brew, Track, Sleep well.

Stop guessing when caffeine leaves your body. Koffee uses a real pharmacokinetic model to show your exact caffeine level in real time — not estimates, not averages. A smooth half-life decay curve tracks every milligram from your morning espresso to your afternoon latte, showing you precisely when you'll be sleep-ready. WHY KOFFEE Most caffeine trackers count milligrams. Koffee shows you the science. The half-life curve visualizes how caffeine metabolizes in YOUR body based on your weight, metabolic speed, and lifestyle factors. Optional cortisol bands show the natural rhythm your body follows — so you can time your coffee for maximum effect. TRACK EFFORTLESSLY - One-tap Quick Log with 10 presets and custom drinks - 50+ branded drinks from Starbucks, Dunkin', Costa, McCafe - Dynamic Island shows your level without opening the app - Home Screen and Lock Screen widgets - Smart Last Call alarm before your cutoff time PROTECT YOUR SLEEP - Real-time countdown to when you're safe to sleep - Sleep Impact Score (0-100) based on caffeine timing and HealthKit data - Sleep Simulator: "What if I skip the afternoon coffee?" - Sleep correlations with HealthKit heart rate and deep sleep data - Personalized cutoff based on YOUR bedtime and metabolism UNDERSTAND YOUR PATTERNS - Caffeine Persona: discover your archetype (Early Bird, Night Owl, Rocket...) - Yearly heatmap with 365 days of caffeine history - Tolerance Tracker with 4-week rolling trends - Weekly Report with actionable insights - Koffee Wrapped: your year in review, shareable PERSONALIZED TO YOUR BODY - 3 metabolic speeds: slow, normal, fast - Body model: weight, smoker, oral contraceptives, pregnancy - Custom daily goals with streak tracking - 16 themes from Oat Milk to Espresso PRICING Free tier includes full caffeine tracking, curve, countdown, Dynamic Island, Quick Log, and 4 widgets. Unlock Koffee Insights for sleep intelligence, deep analytics, premium widgets, and personalization. - Monthly: $1.99/mo - Annual: $9.99/yr (3-day free trial) - Lifetime: $19.99 (one-time, yours forever) No ads. No data selling. Your health data stays on your device. Terms of Use: https://www.koffeecaffeinetracker.app/terms Privacy Policy: https://www.koffeecaffeinetracker.app/privacy