ClearHalf: Caffeine Tracker
Coffee, Sleep & Body Clock
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Track caffeine and alcohol, estimate when they may clear, and see your Body Clock at a glance with widgets, Live Activities, and Apple Watch.
Ever lie awake wondering if that 4pm coffee is still working?
ClearHalf is a caffeine tracker that helps you see how coffee, tea, energy drinks, and alcohol may change over time — so you can better plan around sleep, bedtime, and your day.
Log a drink and ClearHalf turns it into a visual Body Clock: an hour-by-hour estimate of how much may still be in your system and when it is expected to clear.
PLAN YOUR CAFFEINE AROUND SLEEP
Set your usual bedtime and see whether a late coffee may still be active when you're ready to sleep.
ClearHalf helps you answer questions like:
• Is my afternoon coffee still in my system?
• When should I have my last coffee?
• How much caffeine may be left by bedtime?
• When is my caffeine expected to clear?
YOUR BODY CLOCK
See caffeine and alcohol change over time on one simple timeline.
Instead of just counting milligrams, ClearHalf shows an estimated clearance curve so you can understand what may still be active now — and what it could look like hours from now.
PERSONALIZED CAFFEINE ESTIMATES
Caffeine affects everyone differently.
With ClearHalf Premium, calibration uses your feedback to personalize future estimates instead of relying only on a standard average.
SEE IT EVERYWHERE
• Home Screen and Lock Screen widgets keep your Body Clock a glance away.
• Apple Watch lets you quickly log drinks and check your current estimate from your wrist.
• Watch complications keep key information close at hand.
• Live Activities can show your estimated clear time directly on your Lock Screen.
COFFEE, TEA, ENERGY DRINKS & MORE
Quickly log common sources of caffeine, including coffee, espresso, tea, and energy drinks. You can also track alcoholic drinks and view their estimated clearance separately.
INSIGHTS THAT ADD UP
Look back at your habits, spot patterns, and experiment with your timing.
What happens if you stop caffeine at 2pm instead of 4pm? How often are you reaching bedtime with caffeine still estimated to be active?
ClearHalf helps turn those questions into something you can actually see.
PRIVATE BY DESIGN
Your logs stay on your device.
ClearHalf doesn't track you or sell your data. Caffeine logs can optionally be saved to Apple Health; everything else stays with you.
IMPORTANT
ClearHalf provides estimates to help you understand patterns and plan your timing. Individual metabolism varies, and estimates may not reflect your actual caffeine or blood alcohol level. ClearHalf is not medical advice and should never be used as the sole basis for driving, medical, work, or other safety-critical decisions.
ClearHalf Premium unlocks calibration, insights, and newest features.
SUBSCRIPTION TERMS
Premium: $0.99/month
Annual: $5.99/year
Payment will be charged to your Apple Account at confirmation of purchase.
Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period.
Your account will be charged for renewal within 24 hours prior to the end of the current period.
You can manage and cancel subscriptions in your App Store account settings.
Privacy Policy: https://gorushtech.com/clearhalf-privacy-policy.html
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Track caffeine and alcohol, estimate when they may clear from your body, and plan around sleep and bedtime.
Small fixes, smoother experience.
• Fixed an issue where the welcome popup could remain visible after your first use.
See your Body Clock at a glance with:
• Caffeine and alcohol tracking
• Estimated clearance timelines
• Bedtime-aware insights
• Home Screen and Lock Screen widgets
• Live Activities
• Apple Watch support
Thanks for using ClearHalf!
The developer, Rush Tech LLP, 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
- Rush Tech LLP
- Size
- 8.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Alcohol, Tobacco, Drug Use or References
- In-App Purchases
Yes
- ClearHalf Premium $29.99
- ClearHalf Premium Monthly $0.99
- ClearHalf Premium Annual $5.99
- Copyright
- © 2026 Rush Tech LLP