Caffie
Realtime Caffeine Tracker
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Enabled iOS 18.0 or later
The developer, Kosuke Sakuma, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kosuke Sakuma
- Size
- 1.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Caffie Pro $2.99
- Copyright
- © 2026 Saku