Unbuzz: Caffeine & Sleep Timer

Caffeine has a 5-hour half-life. A coffee at 3 pm is still circulating in your bloodstream at midnight, and that's why you can't sleep. Unbuzz tracks every drink, models your personal caffeine decay, and tells you the exact moment you're sleep-ready.

SLEEP-READY ALERTS • Real-time caffeine curve based on your personal half-life • A gentle notification when your level drops below your bedtime threshold • Customisable bedtime goal, drink portion sizes, and sensitivity factors

SMART TRACKING • Quick-tap logging for your favourite drinks • Barcode scanner for canned and bottled drinks • Apple Health integration (read & write) • Offline-first: every measurement stays on your device by default

INSIGHTS • Daily and weekly caffeine breakdown • Streaks and achievements that reinforce mindful habits • Trends you can finally tie back to how you slept

UNBUZZ PRO • Apple Watch app + complications, log a drink from your wrist • Home Screen and Lock Screen widgets that show your live caffeine level • Siri Shortcuts for voice logging ("Hey Siri, I just had a coffee") • Sleep-correlation analytics (how each day's caffeine maps to your night) • Weekly and monthly trend reports • Guided tolerance-reset programs (one of the most common asks) • Cloud backup and sync across your devices • Available monthly, yearly, or as a one-time Lifetime purchase

PRIVACY • Works fully offline by default • Optional cloud sync uses end-to-end encryption • No third-party tracking, no ads, no data sales

Built by Health3 AG. Questions, ideas, bug reports: hello@unbuzz.app or unbuzz.app.

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