LastCup: Caffeine & Sleep Log

"Can I drink this afternoon coffee and still fall asleep by 11:00 PM?" Stop guessing. LastCup tells you your exact daily "Last Cup" cut-off window and the precise minute your active caffeine drops below your safe sleep threshold. Built natively for iOS with a sleek, pure-black OLED interface, LastCup syncs seamlessly with Apple Health and brings interactive Home & Lock Screen widgets right to your fingertips. Best of all? Pay once, use forever. Zero subscriptions. WHY COFFEE LOVERS SWITCH TO LASTCUP: • Daily "Last Cup" Cut-Off Countdown Set your target bedtime (e.g., 11:00 PM), and LastCup works backward using your current caffeine load to tell you the latest time you can enjoy another cup without ruining your deep sleep. • Exact Safe Sleep Time Predictor Know the exact minute your body's active caffeine clears below your personal sleep threshold (default 50mg, customizable from 10mg to 100mg). • Interactive Home & Lock Screen Widgets (iOS 17+) Check your live caffeine ring and safe sleep time at a glance. Log an Espresso (+64mg) or Americano (+150mg) directly from your Home Screen widget without even opening the app. • 12-Hour Real-Time Metabolism Curve Watch your active caffeine fade away minute-by-minute on a smooth predictive chart, complete with your custom safe-to-sleep target line. • Personalized Half-Life (Fast vs. Slow Metabolizers) Everyone processes caffeine differently. Customize your half-life from 2.5 hours (fast) to 9.0 hours (slow) so predictions match your unique biology. • Smart Cut-Off & Bedtime Alerts Get a gentle local notification 30 minutes before your daily caffeine window closes—time to switch to decaf or herbal tea! • Curated Beverage Library & Custom Intake Log Espresso, Latte, Cold Brew, Matcha, Red Bull, Monster, Tea, or any custom milligram amount in one tap. Made a mistake? Undo your last drink instantly. PRIVACY FIRST & APPLE HEALTH SYNC LastCup uses Apple HealthKit as its single source of truth. No sign-ups, no cloud servers, and no tracking. Your health data never leaves your iPhone. NO SUBSCRIPTIONS. PAY ONCE, YOURS FOREVER. Tired of simple trackers charging $5/month or $30/year? So are we. Unlock LastCup Pro with a single, lifetime purchase. Zero ads, zero hidden fees, zero subscriptions. Reclaim your deep sleep without giving up the coffee you love. Download LastCup today! Disclaimer: LastCup provides estimates based on standard pharmacokinetic models for informational purposes only and does not constitute medical advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/