LastSip: Caffeine & Coffee

Track caffeine in real time, see your personal half-life curve, and know the last call to still sleep tonight.

Know exactly how much caffeine is in your body — right now, and at bedtime.

LastSip logs every coffee, espresso, tea and energy drink in one tap, then uses a personalized half-life model to show your real caffeine curve — not a generic estimate. Meet Buzz Buddy, a friendly character whose mood mirrors your caffeine state in real time.

WHY YOU'LL LOVE IT • See caffeine in your system now, and what's left when you sleep • Personalized half-life — adjusts to your body, not a one-size-fits-all 5 hours • Smart "last call" cutoff so your afternoon coffee won't cost you sleep • Apple Health sync: correlate caffeine with your real sleep & resting heart rate

LOG IN SECONDS • Big database of drinks & brands (Starbucks, Monster, Celsius, Red Bull…) • Built-in calculator for homemade espresso & pour-over • One tap, Siri, Home Screen widgets & Apple Watch

STAY IN CONTROL • Live caffeine curve on your Lock Screen (Live Activity) • Charts by day and week, with trends and your daily limit • Friendly status: "Buzz fades by 14:30", "ok to sleep after 22:00"

Your caffeine logs stay on device and in Apple Health. Works offline.

Start tracking. Sleep better. Feel the difference. ———— LastSip Pro unlocks your personal half-life engine, smart sleep-cutoff alerts, Live Activity, Home Screen widgets and the Apple Watch app. • Weekly or Yearly subscription — Yearly includes a 7-day free trial • Prices: Weekly $3.99 / Yearly $19.99 (or local equivalent) Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Account Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.privacypolicies.com/live/1611df48-e97d-433e-8c68-31cb0e9f1200

Estimates for self-tracking — not medical advice, and not a medical device.