LastCup - Caffeine Tracker

Stop guessing how your afternoon coffee will affect your sleep. LastCup is a beautifully designed, privacy-first caffeine tracker that uses pharmacokinetics to predict exactly when your body will clear enough caffeine for a good night's rest. Built purely for iOS, LastCup works seamlessly with Apple Health to give you peace of mind. And the best part? Absolutely NO subscriptions. 1、 KEY FEATURES • Smart Sleep Predictor: Know the exact hour your body's caffeine level drops below the safe sleep threshold (50mg). • Beautiful Metabolism Charts: Watch your active caffeine fade away over a 12-hour predictive curve. • 1-Tap Quick Log: Add Espresso, Cold Brew, Energy Drinks, or Matcha in seconds. • Massive Beverage Library: Built-in database with accurate caffeine amounts for popular drinks. • Oops, Undo: Accidentally logged a drink? Remove it instantly with one tap. 2、 PRIVACY FIRST & APPLE HEALTH LastCup uses HealthKit as its single source of truth. We don't have servers, we don't require accounts, and your health data never leaves your device. 3、 PAY ONCE, YOURS FOREVER Tired of modern apps asking for $5/month? We are too. LastCup is a single, upfront purchase. Buy it once, use it forever. Zero ads, zero hidden fees, zero subscriptions. Download LastCup today, find your perfect caffeine limit, and reclaim your deep sleep.