Take control of your
caffeine habits
Track your caffeine intake, understand your metabolism, and sleep better. DeCaf helps you find the perfect balance.
Why DeCaf?
Track Every Cup
Log your caffeine doses quickly. See exactly how much caffeine you consume each day with an intuitive interface.
Visualize Metabolism
An interactive chart shows your real-time caffeine level based on a 5-hour half-life decay model.
Sleep Better
Set your bedtime and see the 50mg sleep threshold line. Know when to stop drinking caffeine for a great night’s rest.
Set Goals & Taper
Set a daily caffeine limit and create taper plans to gradually reduce your intake at a comfortable pace.
History & Trends
Browse your full caffeine history day by day. See patterns and make informed decisions about your habits.
Private & Secure
Your data is encrypted and synced securely. We never sell your information or share it with third parties.
How It Works
Log Your Dose
Enter the drink name and caffeine amount, or pick from common presets.
Watch the Chart
See your caffeine level rise and decay in real-time on the interactive chart.
Set Your Bedtime
The app shows when you’ll drop below the sleep-safe 50mg threshold.
Improve Over Time
Review trends, set goals, and taper down to build healthier habits.