Free Focus & Productivity Tools
Interactive calculators, trackers, timers, and study tools built for students, professionals, and anyone trying to use caffeine more intelligently.
Caffeine Intake Calculator
Estimate a smart caffeine dose for study, energy, workouts, or night shifts.
Open tool →Caffeine Half-Life Calculator
See how much caffeine remains in your system hour by hour.
Open tool →Pomodoro Focus Timer
Run distraction-free work and break cycles with a built-in focus timer.
Open tool →Daily Caffeine Tracker
Track every drink, supplement, and stimulant source against the 400mg limit.
Open tool →Focus Score Quiz
Measure your concentration habits and identify your biggest performance bottlenecks.
Open tool →Study Session Planner
Generate a study schedule by exam date, subject difficulty, and available hours.
Open tool →Caffeine Comparison Tool
Compare Smart Caffeine with coffee, tea, energy drinks, and caffeine pills.
Open tool →Memory Test
Play a sequence memory game and test your working-memory ceiling.
Open tool →Exam Countdown + Energy Planner
Count down to major exams and get a practical final-week energy routine.
Open tool →