Caffeine Flow:Caffeine Tracker

Track caffeine with half-life science and find your optimal bedtime

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.

Science-Based Caffeine Tracking

Using the caffeine half-life formula, 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 Guidance

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 without disruptions.

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.

180+ Drink Database

Preloaded with data from major franchises including Starbucks, Dunkin, and 70+ global brands. Covers 11 categories: Coffee, Energy, Tea, Soda, Capsule, Instant, Bubble Tea, Dessert, Medication, Functional, and more. You can also add custom drinks.

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.

Statistics and Reports

Analyze your caffeine patterns by week and month. Get visualized insights including daily intake trends, weekday patterns, and your Top 5 most consumed drinks.

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.