MinCaffeine

Know exactly when your body is ready for sleep. MinCaffeine uses a science-based caffeine metabolism model to track how much caffeine is still in your system — in real time. Log your drinks, set your bedtime, and let MinCaffeine do the math so you never have to wonder if that afternoon coffee was a mistake. HOW IT WORKS Every time you log a drink, MinCaffeine calculates your remaining caffeine level using the scientifically established 5-hour half-life of caffeine. It continuously updates throughout the day, giving you a live view of what's happening inside your body. PROTECT YOUR SLEEP Set your bedtime and daily limit during a quick onboarding setup. MinCaffeine will warn you before you log a drink that could keep you up at night or push you over your daily limit. A live countdown shows exactly how long until your caffeine drops to a sleep-safe level. CORE FEATURES - Live caffeine level with animated tank visualization - Countdown to safe sleep time - Quick-add buttons for coffee, tea, soda, and energy drinks - Smart warnings when a drink will affect your sleep - Daily caffeine limit tracking - Streak counter to build healthy habits - Full drink history with calendar overview DETAILED ANALYTICS - Weekly, monthly, and yearly caffeine intake charts - Time-of-day distribution breakdown - Weekday vs. weekend comparison - Average daily intake, peak hour, and top drink stats - Caffeine metabolism insights