health
CaffeineReset
Track your caffeine, time your last coffee, and sleep better.
CaffeineReset estimates how much caffeine is actually in your bloodstream right now using a one-compartment pharmacokinetic model, then shows you the absorption and elimination curve based on what you've logged. Pick from 729+ drinks (including Indian favorites like Cutting Chai, Filter Coffee, Sting, and Tzinga), tune the math to your own metabolism, and find out exactly when to stop drinking so caffeine isn't still in your system at bedtime. If you want to cut back, run a 7-to-30-day reduction challenge with weekly targets, drink-swap suggestions, and withdrawal symptom tracking. Everything runs offline, nothing leaves your phone, and there's no account to create.
The Problem
You drink coffee all day, lie awake at night, and have no idea how much caffeine is still in your system or when you should have stopped. Generic trackers just count milligrams without telling you what's actually happening in your body.
The Solution
CaffeineReset uses a pharmacokinetic model personalized to your metabolism to estimate your real-time blood caffeine level, predict your bedtime level, and tell you when to take your last sip. When you're ready to cut back, structured 7-to-30-day challenges and withdrawal tracking get you there gradually.
Features
Key Capabilities
Know your real caffeine level
A pharmacokinetic model estimates the caffeine in your bloodstream right now and plots the absorption and elimination curve through the day.
Time your last cup for sleep
Predicts how much caffeine will still be in your system at bedtime and tells you the latest time you can safely drink.
729+ drinks, Indian ones included
Log Cutting Chai, Filter Coffee, Sting, Tzinga, CCD and Starbucks India items, or create custom drinks with your own caffeine values.
Cut back on your terms
Run reduction challenges from 7 to 30 days with weekly targets, multiple strategies, and drink-swap suggestions instead of going cold turkey.
Tuned to your body
A sensitivity quiz and lifestyle factors like smoking, medications, and pregnancy adjust your personal caffeine half-life and limits.
Track withdrawal and progress
Log withdrawal symptoms, spot patterns over time, keep a streak of days under goal, and unlock 20+ achievements as you go.
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Why Choose
CaffeineReset
Real-time blood caffeine estimation from a personalized pharmacokinetic model
Bedtime caffeine prediction and last-coffee timing for better sleep
100% offline with no account, no ads, and no data collection