HALFLIFE: Quit Caffeine
Taper & Withdrawal Tracker
About
This app helps you quit caffeine by providing a personalized tapering plan based on your intake. It predicts withdrawal symptoms and visualizes caffeine's impact on sleep, guiding you through a science-based approach to reduce consumption without suffering.
What's New in HALFLIFE
1.0.5
May 20, 2026
A quieter, smoother HALFLIFE — with performance improvements throughout.
Subscription plans
Weekly
Taper plan, budget tracking, and insights.
In-App Purchases
$149.99
Lifetime Access
Unlock every HALFLIFE feature forever. Onetime purchase
Developer apps
FAQ
Does HALFLIFE have ads?
Yes, HALFLIFE contains advertisements to support its development and free features. You can remove ads and unlock premium features through in-app purchases.
How does HALFLIFE calculate my caffeine intake?
HALFLIFE uses a database of over 50 drinks and caffeine sources with accurate milligram data. It calculates your true daily intake, as many users underestimate their consumption by 40-60%.
What is the recommended tapering schedule in HALFLIFE?
HALFLIFE builds a personalized taper plan that reduces your consumption by 10-25% per week, based on clinical recommendations from institutions like the Cleveland Clinic and Mayo Clinic.
Can HALFLIFE predict my withdrawal symptoms?
Yes, HALFLIFE maps expected withdrawal symptoms to a medical timeline, predicting when headaches will peak, fatigue will resolve, and brain fog will clear, helping you prepare.
How does HALFLIFE show the impact of caffeine on sleep?
The app features a real-time pharmacokinetic timer that shows how much caffeine remains in your system at any moment, illustrating how late-day consumption affects your deep sleep.
What are the subscription options for HALFLIFE Pro?
HALFLIFE offers several subscription plans: Weekly at $8.99/P7D, 3 Months Pro at $24.99/P3M, and Annual at $79.99/P1Y, providing access to premium features.
Is HALFLIFE suitable for all ages?
HALFLIFE is rated for ages 4 and up, making it accessible for a wide range of users interested in managing their caffeine intake.
How often is HALFLIFE updated?
The app was last updated on May 20, 2026, with its latest version being 1.0.5, indicating regular maintenance and potential feature additions.