Health & Fitness
Caffeine Tracker: Sleep Clock
Know exactly how much caffeine is still in you.
About
Stop guessing how wired or worn out you really are. Caffeine Tracker logs every coffee, tea, energy drink, or soda in seconds, then turns it into a live decay curve built on real pharmacokinetics — caffeine's roughly 5-hour half-life — so you always know exactly how much is still in your system, right now and through the rest of the day. Set your own daily limit and watch your running total against it, tag how you slept each night to spot the link between afternoon coffee and rough nights, and set a personal cutoff time so you get a reminder before it's too late for that last cup. Stuck on a brewing question? Ask Barista, the in-app AI coffee expert, for quick answers on drinks, dosing, and tolerance.
Highlights
- ✓Live caffeine decay curve based on real half-life science
- ✓Log coffee, tea, energy drinks, soda, and custom drinks
- ✓Daily caffeine limit with running total
- ✓Personal cutoff time with reminders
- ✓Sleep quality tracking to spot caffeine's effect on your nights
- ✓Ask Barista, your in-app AI coffee expert
Frequently asked questions
What app tracks how much caffeine is still in my system?+
Caffeine Tracker logs every coffee, tea, energy drink, or soda you have and turns it into a live decay curve based on caffeine's roughly 5-hour half-life, so you always know exactly how much caffeine is still in your body.
Can I set a caffeine cutoff time to protect my sleep?+
Yes — set a personal cutoff time and get a reminder before it's too late for that last coffee, and tag how you slept each night to spot the link between afternoon caffeine and rough nights.
Does Caffeine Tracker have an AI coffee expert?+
Yes — chat with Barista, the in-app AI coffee expert, for quick answers on brewing, drink recommendations, and caffeine tolerance.
Is Caffeine Tracker free?+
Caffeine Tracker is free to download. An optional subscription unlocks advanced features and is billed through your Apple ID; you can cancel anytime from your iPhone's Subscriptions settings.
Get Caffeine Tracker: Sleep Clock today
Available on the App Store. Read our Privacy Policy and Terms of Use.