Caffeine Level Tracker & Calc
Half Life & Sleep Cutoff Clock
Free · Designed for iPad. Not verified for macOS.
Log coffee caffeine intake, track real-time half-life, and sleep cutoff time.
Caffeine Tracker: Real-Time Half-Life & Sleep Cutoff Calculator
Love your daily coffee, espresso, or energy drinks, but worried about caffeine staying in your body at bedtime?
Caffeine Tracker is your smart personal caffeine manager. By applying scientific caffeine clearance half-life equations (approx. 5-hour half-life), it calculates your real-time body caffeine level, predicts when caffeine will completely clear, and provides a sleep cutoff time to protect your sleep quality.
Key Features
1. Real-Time Body Caffeine & Clearance Estimator: Track how much caffeine remains in your system right now and see the exact estimated time when it will be fully metabolized.
2. Sleep Cutoff Time Calculator: Input your target bedtime (e.g., 11:00 PM) to get your personalized latest safe caffeine intake time so you can fall asleep soundly.
3. Daily Intake Limit Warning: Monitor today's total caffeine intake against recommended daily limits (e.g., 400 mg for healthy adults) with instant warning alerts.
4. Quick Presets & Custom Entries: Quickly log Espresso, Americano, Latte, Energy Drinks, Cola, Green Tea, or add your own custom drink sizes and milligrams.
5. Calendar History & Intake Trends: Review your past caffeine consumption history on a visual calendar to build healthier coffee habits.
Recommended For
- Coffee lovers, students, and professionals who want to enjoy caffeine without sacrificing sleep.
- Anyone experiencing insomnia, anxiety, or restlessness from afternoon coffee or energy drinks.
- Health-conscious individuals monitoring daily caffeine limits (adults 400mg, pregnant women 200mg).
Download Caffeine Tracker today and enjoy your favorite drinks while sleeping soundly!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Stability improvements.
The developer, Seulki Eom, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Seulki Eom
- Size
- 47.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Korean
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 HydroponicGlass