Caffeine Clock vs Caffeine Tracker

Track your caffeine and sleep better. See exactly when today's coffee wears off. Caffeine Clock is a caffeine tracker that models absorption and half-life to estimate how much caffeine is in your system throughout the day. Log what you drink or eat, see how levels rise and fall, and plan your last cup so you can sleep with confidence. Accurate tracking with absorption rate Not just totals. Caffeine Clock models how quickly you absorb caffeine and how it declines (half-life), then estimates your level now and later. If you note how long you sipped that cappuccino, the curve updates accordingly. A clear, actionable dashboard An attractive graph shows your current level, projected decline, and how much caffeine you'll have at any time. Long-press to scrub the timeline and reveal exact values. At a glance, know whether you're in the clear - or whether another cup will push you past your comfort zone. Interactive Home Screen Widgets Monitor your stats without even opening the app. View your live caffeine curve and current mg count directly on your Home Screen. Need to log a refill? Use the quick-add widget to track your favorites with a single tap - keeping your data accurate with zero friction. Sleep-aware insights Set a target bedtime. If your projected level looks high by then, Caffeine Clock lets you know early, often before you even add a drink, so you can adjust your cut-off and protect tonight's sleep. Tuned to you A quick setup captures your habits and sensitivity, and you can adjust your personal caffeine half-life at any time in Settings, so the curve matches how your body actually clears caffeine. 200+ drinks, plus your own Choose from a built-in database of coffees, teas, and energy drinks, or create custom drinks with your own sizes and mg. Fast logging means better tracking. Thresholds and gentle alerts Pick a daily caffeine limit that fits your routine, whether that is the commonly cited 400 mg for adults or the 200 mg guideline many people follow during pregnancy. Get timely reminders before you overdo it. Apple Health Send every logged drink to Apple Health so your caffeine sits next to your sleep and the rest of your health data. Private and fully offline No account, no signup. Your data stays on your device, with an option to transfer locally. Caffeine Clock works fully offline. Anytime, anywhere. Made for everyday routines Whether it's espresso at 8, tea at 2, or an energy drink before a workout, Caffeine Clock shows how today's choices affect tonight's sleep, so you can enjoy what you love without second-guessing it. How it works - Log a drink from the 200+ library or use the quick-add widget. - The app models absorption and half-life to estimate your level over time. - Watch the live caffeine curve and countdown on the dashboard or Home Screen. - Set a bedtime and get informed if you may still be "too caffeinated" by then. Why a dedicated caffeine tracker? Caffeine affects everyone differently. A general health app won't tell you when a 3 PM latte will still be in your system at 10 PM. Caffeine Clock focuses on one job: timing your intake for better days and better nights. Get started in minutes Install, finish the onboarding, log your first drink, and watch your caffeine curve come to life. Disclaimer Caffeine Clock provides estimates based on published half-life ranges and your inputs. It's for informational purposes only and is not a medical device or a substitute for professional advice.

Caffeine Tracker tells you how much caffeine is in your body right now and when to stop for a good night's sleep. Log a flat white, a builder's tea or a can of Monster in one tap. Caffeine Tracker models how your body clears caffeine and shows a live curve for the day, a "last drink by" time for your bedtime, and a reminder before it is too late. Connect Apple Health and see how your caffeine lines up with your sleep. On days you drink coffee late, do you sleep less? Caffeine Tracker compares your own nights and tells you in plain English. WHAT YOU GET • Drink library with local chains by size: Costa, Pret, Starbucks, Caffè Nero and Greggs in the UK, plus Kahve Dünyası, Espressolab, Tchibo, Coffee Fellows, Columbus Café, Coffeecompany and more in Turkey, Germany, France, the Netherlands and Portugal; generic coffees, teas, energy drinks and cola everywhere • Custom drinks and favourites for one-tap logging • Live "caffeine in your body" gauge and daily curve • Bedtime cut-off: set your target bedtime and a caffeine limit; the app works out your last-drink time • Last-drink reminder and optional morning summary • Apple Health: writes the caffeine you log, reads your sleep, heart rate and HRV • Works with any wearable that syncs to Apple Health, including Apple Watch, Oura, Garmin, Polar and Withings • Sleep & Caffeine: your first insight, free • Home Screen widget, Apple Watch app EVERYTHING FREE FOR 14 DAYS Install, and every Premium feature is unlocked for two weeks — no card needed. After that the core app stays free. PREMIUM • Caffeine Coach: a weekly AI note and answers to questions like "when should my last coffee be today?", grounded in your own numbers • Works with WHOOP: see each morning's recovery next to yesterday's caffeine, in plain words. • All sleep insights, unlimited history and 30-day trends • Morning summary notification • Medium and Lock Screen widgets, Apple Watch logging and complications • Weekly report you can share as PDF, and CSV export of all your data • Personal half-life estimate learned from your own sleep data Premium is a subscription: £4.99 a month or £39.99 a year. Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple ID › Subscriptions. PRIVACY Your drinks and Apple Health data stay on your device. No ads, no tracking. Caffeine Tracker shows relationships in your own data. It is not medical advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://api.pucl.co.uk/privacy WHOOP is a trademark of WHOOP, Inc. Caffeine Tracker is not affiliated with or endorsed by WHOOP.