CaffSense: Caffeine & Sleep
Find your caffeine cutoff
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
See your live caffeine curve and exact cutoff time to protect your sleep. Pro unlocks your personal caffeine-sleep link from Apple Health, plus a guided reduction plan.
Love coffee. Sleep better anyway.
CaffSense shows the caffeine in your body right now on a live half-life curve — and the exact time to stop so it's out of the way by bedtime.
Then it goes further: by quietly comparing your caffeine timing with your Apple Health sleep, CaffSense learns how your body clears caffeine — faster or slower than the textbook 4 hours — and tunes your curve and cutoff to match you.
• Live "caffeine on board" gauge & curve
• Your personal cutoff time
• One-tap logging, widget & Apple Watch
• Sleep-pattern insights from Apple Health
Private by design: everything stays on your iPhone. No account, no tracking, no ads.
Free: today's curve & cutoff. Pro: full history, personal half-life & sleep insights.
Not medical advice. Patterns are observational and may be affected by stress, alcohol, exercise, illness, medication, and data quality.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://caffsense.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Reduction mode now displays correctly for Pro subscribers who haven't started a weekly target yet. Refined the Today screen layout.
The developer, Juraj Dollinger-Lenharcik, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Juraj Dollinger-Lenharcik
- Size
- 4.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 3 more
- English, French, German, Spanish
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- CaffSense Pro (Yearly) $9.99
- CaffSense Pro (Monthly) $1.99
- Copyright
- © 2026 JDL Software