# HALFLIFE: Quit Caffeine

> Taper & Withdrawal Tracker

Canonical page: [https://chrome-stats.com/d/id6761648347](https://chrome-stats.com/d/id6761648347)

## Overview

- **ID:** `id6761648347`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Torben Nils Seidler
- **Category:** Health & Fitness
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.5
- **Last updated:** 2026-05-20
- **First published:** 2026-04-21
- **Size:** 27 MB
- **Data as of:** 2026-09-26
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/halflife-quit-caffeine/id6761648347)
- **Website:** [https://gethalflife.app](https://gethalflife.app/)
- **Privacy policy:** [https://gethalflife.app/privacy](https://gethalflife.app/privacy)

## Description

You tried to quit caffeine cold turkey. By day two, the headache was unbearable, you couldn't focus at work, and you caved. You're not weak -- you're experiencing a medically recognized withdrawal syndrome (DSM-5 code 292.0). And the cold-turkey approach is the reason 80% of people fail.

HALFLIFE is the first app that treats caffeine like what it is: a psychoactive drug with a 5-6 hour half-life, predictable withdrawal symptoms, and a clinically recommended tapering protocol. You don't quit caffeine -- you taper off it.

HOW IT WORKS

Tell the app what you drink -- coffee, energy drinks, tea, soda, pre-workout, even chocolate. HALFLIFE calculates your true daily caffeine intake (most people underestimate by 40-60%) and builds a personalized taper plan that reduces your consumption by 10-25% per week.

Each day you get a caffeine budget -- not a prohibition, but a shrinking allowance. You choose how to spend it. One smaller coffee? Switch to half-caf? Green tea instead of espresso? The budget decreases on schedule until you reach your goal.

PREDICT WITHDRAWAL BEFORE IT HITS

HALFLIFE maps your expected symptoms to a medical timeline: when headaches will peak, when fatigue resolves, when brain fog clears. "Day 3: Expect moderate headache. Peak intensity: tomorrow. Resolution: day 7." The unknown becomes known. Fear becomes a plan.

SEE WHAT CAFFEINE DOES TO YOUR SLEEP

Your 3pm coffee means 47mg of caffeine is still in your bloodstream at midnight. Your "afternoon pick-me-up" is costing you deep sleep every single night. HALFLIFE's real-time pharmacokinetic timer shows exactly how much caffeine remains in your system at any moment -- based on published half-life research (5.7-hour average metabolism). Once you see the numbers, you can't unsee them.

BUILT ON SCIENCE, NOT WILLPOWER

- Personalized taper schedule based on your actual intake
- 50+ drinks and caffeine sources with accurate mg data
- Daily caffeine budget that decreases on a medical schedule
- Withdrawal symptom predictor mapped to clinical timelines
- Real-time half-life decay calculator
- Caffeine-sleep impact visualizer
- Symptom logging to track predicted vs. actual experience
- Substitution suggestions for every reduction step

Caffeine withdrawal is recognized by the DSM-5, and gradual tapering is recommended by the Cleveland Clinic, Mayo Clinic, and the American Academy of Sleep Medicine. HALFLIFE applies this clinical protocol to your specific intake -- so you can quit without the suffering that made you restart last time.

The people who beat caffeine don't white-knuckle it. They follow a protocol. This is yours.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #811,255 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6761648347)