Curfew: Caffeine Tracker

Know when caffeine clears before bed. Log coffee in one tap — sleep-safe countdown included.

Afternoon coffee? Curfew tells you exactly when caffeine will clear so you can sleep well — without guesswork or guilt.

Coffee, espresso, tea, energy drinks: log any caffeinated drink in one tap and watch your personal sleep-safe time update in real time. Curfew models how caffeine actually decays in your body using half-life science, not a flat "cutoff hour" guess, so the countdown adjusts to what and how much you drank. It's a calm, judgment-free companion for anyone who loves coffee in the afternoon but still wants to fall asleep on time.

KEY FEATURES: • Sleep-safe clock — see the exact time your caffeine will clear • One-tap logging for coffee, espresso, latte, tea, and energy drinks • 8 built-in drink presets, sized small/medium/large • Real caffeine decay math based on half-life — not a gimmick counter • Gentle curfew reminders before your personal caffeine cutoff • 7-day insights to see when and how much you're really drinking • Lock Screen + Home Screen widgets with live caffeine level (Pro)

WHY CURFEW: • On-device — your drink log stays private, never sold or shared • Built for real routines: log a coffee in under 5 seconds • Designed around sleep science, not caffeine myths • Native widgets and HealthKit integration, no clutter

CURFEW PRO: • Unlimited daily drink logs (free tier: 3/day) • Full history beyond 7 days • Custom drinks and adjustable half-life (4–7 h) to match your own sensitivity • Lock + Home Screen widgets with live caffeine level • HealthKit sync: correlate caffeine intake with your actual sleep data

PERFECT FOR: • Coffee and espresso lovers who don't want caffeine wrecking their sleep • Shift workers and night owls tracking a moving bedtime • Anyone sensitive to caffeine who keeps drinking "just one more" too late • People already using a sleep or energy tracker who want the missing caffeine piece • Parents and students managing energy dips with coffee, safely

ACCESSIBILITY: Curfew supports VoiceOver, Dynamic Type, and full Dark Mode, so the sleep-safe clock and drink log are easy to read and navigate for everyone.

Wellness-focused. No mascots, no medical claims — just clear caffeine math. Your data stays on your device.

Download Curfew and always know your last coffee time.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/