Features & Capabilities

See your active caffeine from Apple Health in real time, track how it changes over time, and check your level at a glance on iPhone and Apple Watch.

Caffeine Curve helps you track your estimated caffeine level in real time.

Using your dietary caffeine entries from Apple Health, the app estimates how much caffeine may still be active in your body throughout the day. It uses an absorption and elimination model to give you a more useful picture than intake alone.

It is designed for a simple purpose: to give you the most useful caffeine information quickly and clearly. Whether you are deciding on another coffee, trying to stay in a good range for focus, or avoiding caffeine too close to bedtime, Caffeine Curve helps you understand where you stand right now.

Features

  • Track your estimated current caffeine level
  • See how your caffeine level changes throughout the day
  • Reads dietary caffeine data from Apple Health
  • Check your current level from the Lock Screen widget
  • Understand how long caffeine may remain active
  • Clean, simple interface designed for quick checks
  • Rich Home Screen Widgets: Keep an eye on your caffeine levels and daily trends without even opening the app, featuring beautiful charts and gauges
  • Smart Complications: New rectangular and dial-top complications clearly show the exact time of your next peak or when you’ll be clear for sleep.
  • Useful Notifications: Get pinged exactly when you hit your caffeine peak or when your system drops below your personalized sleep-ready threshold.
  • Peak & Sleep Indicators: Know exactly when your coffee hits its peak and precisely when you are cleared for a good night's sleep
  • Unmatched Personalization: Choose from 5 different sensitivity profiles to perfectly match your unique body chemistry and caffeine decay rate
  • Try It Demo Mode: Explore the app's full capabilities and stunning visual charts using sample data before committing to logging your own
  • Beautiful & Customizable Design: Experience a gorgeous new "Liquid Glass" aesthetic that feels right at home on iOS, plus full control over Light/Dark modes and all-new tinted app icons.

Caffeine can be logged automatically by other apps that write to Apple Health, or added manually in the Health app under Nutrition > Caffeine.

Caffeine Curve is free to use, with no ads and no in-app purchases. It was built from a real daily need: a simple way to understand caffeine levels clearly, quickly, and without unnecessary extras.

Important Individual caffeine metabolism varies. Factors such as genetics, liver health, medications, and pregnancy can affect absorption and elimination. Caffeine Curve is for informational purposes only and does not provide medical advice.

User Growth & Download Statistics

App
By:
Haris Delalic
Version:
2.2 Last updated: 2026-04-26
Version code:
884915788
Creation date:
2026-03-28
Compatible devices:
Size:
4.24MB
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-05
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:
Haris Delalic
Apple Apps Store
https://apps.apple.com/gb/app/caffeine-curve/id6760567892

User Reviews

this is epic, I love it
by so*****, 2026-05-22

I used to wonder how much caffeine I was actually consuming throughout the day. Once I realized coffee was starting to make me feel more sluggish instead of energized, I knew I needed better visibility. This app delivers exactly that, giving me a clear picture of my caffeine trends. The interface is clean, the widgets are well-designed, and the addition of the Apple Watch app is a great touch. What’s been most valuable is understanding when my caffeine levels drop enough to avoid disrupting sleep, something I hadn’t thought to track until I started noticing restless nights. It’s also helpful as a practical check, reminding me when it’s too late for another cup if I want to get to sleep at a specific time. The developer clearly put real thought into the experience, and I’m looking forward to seeing how it continues to evolve.
by Ay*****, 2026-04-26

This app is amazing, I couldn’t find anything that followed the decay time of caffeine until this. Awesome sauce.
by Sa*****, 2026-04-26
View all user reviews ›

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