Features & Capabilities

Track your body's caffeine level in real time using half-life science. Know exactly how much more you can drink before bed. 70+ drink presets included.

HalfCaff tracks your caffeine intake and shows exactly how much caffeine is in your body right now.

Using scientifically-based half-life calculations, HalfCaff answers the one question every coffee lover asks: "Can I have another cup and still sleep tonight?"

"○○mg remaining" — Based on your bedtime threshold and the FDA daily limit (400mg), see exactly how much more you can drink at a glance.

Features:

  • Real-time body caffeine level with circular gauge
  • Remaining allowance display ("○○mg OK to drink")
  • 24-hour caffeine decay curve
  • 70+ drink presets (Starbucks, Doutor, Tully's official data)
  • Home screen widgets (Small & Medium)
  • Dynamic Island & Live Activities
  • Personalized half-life based on your caffeine sensitivity

HalfCaff Pro unlocks:

  • Home screen widgets
  • Dynamic Island display
  • Unlimited history

Includes a 3-day free trial.

Terms: https://halfcaff.decoy284.net/terms/ Privacy Policy: https://halfcaff.decoy284.net/privacy/

User Growth & Download Statistics

App
By:
Yutaro Koide
Version:
1.1.1 Last updated: 2026-04-08
Version code:
884197999
Creation date:
2026-03-28
Compatible devices:
Size:
3.96MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-11
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Yutaro Koide
Apple Apps Store
https://apps.apple.com/is/app/halfcaff/id6760937590
Website:
https://halfcaff.decoy284.net/

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