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  • Caffie screenshot 1
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About Caffie

Make caffeine your ally for peak performance and deep sleep. An intuitive tracker app that accurately simulates your "current caffeine levels" and exactly "when it will clear" from your system. Coffee and energy drinks are amazing tools for boosting focus, but consuming them at the wrong time or in the wrong amounts can severely degrade your sleep quality at night. With Caffie, you can see at a glance when caffeine will leave your body, allowing you to plan the perfect time to relax. [Core Features] • Real-Time Level Display: Visualize your naturally decreasing caffeine levels over time with an intuitive graph. • Smart Insights: Receive precise advice based on your current levels, such as "Optimal alertness" or "Avoid further intake." • Clearance Prediction: Automatically calculates the time until your caffeine level "down to adequate level" and "reaches near zero." • Simple Logging: Intuitively log your drinks with a single tap. [Caffine Pro (Premium Features)] Unlock all features permanently for the price of a single cup of coffee. • Home Screen Widget: Check your current caffeine levels anytime without opening the app. • All-Time History Data: Look back at all your past records and analyze your caffeine habits. • Unlimited Custom List: Add your frequently consumed drinks without any limits. *Disclaimer The calculations for half-life and remaining body levels provided by this app are estimates based on general scientific data. They are not intended to provide medical advice. Please consult a medical professional for accurate judgments regarding your health. Caffine is a smart tracker that visualizes your remaining caffeine levels in real time and supports optimal caffeine control. Since you can also check your daily caffeine intake history, you can thoroughly manage your caffeine with just this one app.

What’s new

Version 1.1 · Updated April 2, 2026

Enabled iOS 18.0 or later

App privacy

The developer, Kosuke Sakuma, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Caffie

Looking for apps like Caffie? Here are 6 similar apps on the App Store.

Caffie vs. alternatives
App Rating Price Last updated Compare
Caffie – Free April 2, 2026
CoffeeCut: Bedtime Estimate – Free Sep 11, 2026 Compare
Caffeine Clock: Bedtime – Free Aug 7, 2026 Compare
HalfCaff – Free Apr 8, 2026 Compare
ねむカフェ - カフェイン×睡眠のパーソナライズ設定 – Free Sep 12, 2026 Compare
Caffff — Caffeine Tracker – Free Jul 10, 2026 Compare
HalfLife: Caffeine Peak, Detox – Free Feb 27, 2026 Compare

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