Bio-Rhythm: Caffeine Tracker
Protect your sleep. Track mg.
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Know exactly when your last coffee is safe. Bio-Rhythm tracks caffeine in your system in real time, scores your sleep readiness, and tells you when to stop.
Still wired at midnight? Bio-Rhythm is the science-based caffeine tracker built for people who refuse to trade tomorrow's sleep for today's coffee.
Every coffee, tea, or energy drink you log is plotted on a real-time decay curve based on your personal metabolism. You'll see exactly how much caffeine is still in your system — and exactly when it will be safe to sleep.
— PROTECT YOUR SLEEP —
Get a precise countdown to your safe-sleep time. No more guessing whether that 3pm latte will haunt you at 1am.
— TRACK CAFFEINE IN REAL TIME —
Watch your caffeine level rise and fall on a beautiful decay chart, powered by the same exponential half-life formula used by sleep scientists.
— SCORE YOUR SLEEP READINESS —
Get a daily Bio-Rhythm Score from 0–100. Build streaks of "perfect nights" and see your 7-day trend at a glance.
— LOG ANY DRINK IN SECONDS —
27+ preloaded beverages — espresso, americano, matcha, Red Bull, Monster, 5-Hour Energy, Coke and more. Or add your own custom drink.
— HIT YOUR FOCUS ZONE (Premium) —
Smart dosing recommendations tell you exactly when to drink your next coffee for peak focus — and when to stop so your sleep is protected.
— BUILT FOR BIO-HACKERS —
Premium unlocks custom half-life (1–12 hours) and sleep sensitivity threshold (0–100mg) so the math matches your body, not an average.
— PRIVATE BY DESIGN —
All your data stays on your device. No accounts, no cloud, no tracking.
Stop sabotaging your sleep. Start tracking with Bio-Rhythm.
— PREMIUM —
Bio-Rhythm Premium unlocks:
• Custom caffeine half-life
• Custom sleep threshold
• Focus Flow dosing recommendations
• Ad-free experience
Bio-Rhythm is free to download and use. To unlock the full "Bio-Hacker Engine," we offer three auto-renewing subscription options:
Weekly Espresso: $1.99 per week
Monthly Steady: $5.99 per month
Yearly Bio-Hacker: $29.99 per year (Best Value)
Privacy : https://cofeetracker.xn--hn-vrab.com/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Improved decay chart accuracy
• New drinks added to the database
• Faster app launch
• Bug fixes and polish
Loving Bio-Rhythm? Leave a review — it really helps!
The developer, Thomas Ferrer, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HONO (Lille)
- Size
- 44 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- yearly subscription $29.99
- weekly subscrition $1.99
- monthly subscrition $5.99
- Copyright
- © hono