Caffeine Flow - Smart Caffeine Tracker & Half-Life Calculator
Scientifically track remaining caffeine in your bloodstream with half-life formulas. Predict safe sleep time, record 180+ cafe drinks, and use handy home widgets.
"Love coffee, but worried about tonight's sleep?"
What matters most isn't just when you drink coffee, but how long caffeine lingers in your body. Caffeine Flow applies scientific pharmacokinetic half-life formulas to visualize real-time bloodstream caffeine levels and pinpoint your Safe Sleep Gate so you wake up refreshed.
⏱️ Real-time Tracking
Check the remaining caffeine in your body and possible sleep time at a glance using a scientific half-life formula.
✨ Personalized Settings
Experience an onboarding wizard that dynamically calculates your daily limit and sleep threshold based on weight and sensitivity.
☕ Extensive Beverage DB
Easily log your drinks without searching, thanks to over 180 global and local franchises and convenience store beverage data.
🔔 Smart Sleep Alerts
Maintain healthy caffeine habits with alerts when you reach a caffeine level that disturbs sleep or exceeds your daily limit.
📱 Widgets & Conveniences
Features home screen widgets for tracking without opening the app, smooth navigation, and a clean statistical dashboard.
Frequently Asked Questions
Find quick answers to common questions about this app.
Q. How does Caffeine Flow predict my safe sleep time (Sleep Gate)?
It uses clinically proven metabolic half-life formulas (typically 5 to 7 hours) to calculate the precise moment active caffeine in your bloodstream drops below safe sleep disruption levels.
Q. What beverages are included in the database?
Over 180 cafe and packaged drinks—including Starbucks, regional specialty coffee chains, convenience store canned coffees, and energy drinks like Red Bull and Monster—are pre-loaded for instant logging.
Q. Can I customize it for my personal sensitivity?
Yes, by configuring your weight, caffeine tolerance level, and bedtime goals, the app dynamically tailors your daily safe limits and bedtime alert thresholds.