Caffeine Health icon
Caffeine Health icon

Caffeine Health

Track your caffeine. Protect your sleep. A privacy-first Material 3 Expressive Android app that shows your active caffeine level in real time and tells you if that late espresso will cost you tonight.

Caffeine Health screenshot 1
Caffeine Health screenshot 2
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Cost / License

Application type

Platforms

  • Android
  • F-Droid
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Features

Properties

  1.  Privacy focused
  2.  Lightweight

Features

  1.  Works Offline
  2.  Ad-free
  3.  No registration required
  4.  Dark Mode
  5.  No Tracking
  6.  Sleep Tracking
  7.  Material design

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AlternativeTo Categories

OS & Utilities, Sport & Health

GitHub repository

  •  128 Stars
  •  9 Forks
  •  9 Open Issues
  •   Updated  
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What is Caffeine Health?

Track your caffeine. Protect your sleep. Real-time pharmacokinetic curves.

Caffeine Health is a beautifully designed Android app that helps you understand how your caffeine intake affects your body throughout the day — and whether that late-afternoon espresso might cost you sleep tonight.

Log drinks from a curated catalog, watch your active caffeine level in real time on a 24-hour curve, and get a personalized sleep forecast based on your unique metabolism.

Features:

• Real-time 24-hour caffeine curve with emoji drink markers • Personalized pharmacokinetic modeling based on age, weight, lifestyle • Sleep forecast — see if caffeine will affect your bedtime • Curated drink catalog: coffee, tea, energy drinks, soda • Drink detail sheets showing individual contribution curves • Quick actions — edit, duplicate, or delete entries • Material 3 Expressive design with dynamic color • Montserrat typography and haptic feedback throughout • Full dark mode support

Privacy:

• Fully offline — all data stays on your device • No ads, no tracking, no analytics, no accounts • Open source (GPL-3.0)

Science:

The app uses a one-compartment oral pharmacokinetic model with personalized half-life calculation. Your caffeine metabolism is estimated from age, weight, smoking status, alcohol intake, and CYP1A2-inhibiting medications — grounded in real pharmacology.