Caffy vs Caffff

Caffy shows your exact caffeine level right now, and tells you precisely when you'll be ready to sleep tonight. Using pharmacokinetic half-life models backed by FDA, EFSA & NIH research, Caffy calculates your personal caffeine curve based on your biology. WHAT MAKES CAFFY DIFFERENT: • Real-time caffeine decay curve: personalized to your age, gender & sensitivity • Sleep readiness score (0–100): know if tonight's sleep is at risk before bedtime • Focus window: see exactly when your caffeine peaks for maximum productivity • AI Weekly Analysis: AI reveals your personal caffeine patterns • Caffeine Detox Programs: structured plans to reduce dependence gradually • 6 Live Widgets: caffeine data on your Home Screen and Lock Screen • 5 Languages: English, Turkish, German, Spanish, Japanese PERSONALIZED HALF-LIFE: Your body processes caffeine differently. Caffy accounts for: • Pregnancy (9h / 12h / 18h half-life) • Oral contraceptive use (7h half-life) • Smoking status (3h half-life) • Age, gender & caffeine sensitivity SCIENCE-BACKED: Caffy's model uses the same caffeine decay formula cited by FDA, EFSA, NIH, and the Sleep Foundation. Not estimates, not averages. A 45-minute absorption phase followed by exponential decay based on your personal half-life. PRIVACY FIRST: No ads. No data selling. Anonymous by default: no registration required on first launch. Your data syncs across devices via an encrypted, GDPR-compliant database. DISCLAIMER: All estimates are based on generalized scientific models and do not constitute medical advice. Consult a healthcare professional for personalized guidance. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Caffff tracks the caffeine in your body over time and helps you protect your sleep. Log a drink and watch a live curve of the caffeine in your bloodstream — see how much is in you right now, what you'll have left at bedtime, and the exact "last call" time to stop drinking and still sleep clean. • Live decay curve. A single-compartment pharmacokinetic model with a configurable half-life, drawn beautifully in dark mode. • One-tap logging. Quick-add tiles for coffee, espresso, energy drinks and more — the strip learns your habits. Backdate a drink you forgot in two taps. • Sleep protection. Set your bedtime and a sleep-safe threshold; Caffff warns you when a drink puts tonight at risk and reminds you of your daily caffeine cutoff. • Home Screen & Lock Screen widgets. Your level at a glance, with one-tap logging. • Weekly insights. Your total, daily average, top drink, and week-over-week trend. Caffff Pro adds full history, Health sleep insights, a custom half-life, and unlimited custom drinks. Caffff shows estimates, not measurements, and is not medical advice. Health: Caffff can read your sleep (Pro) and optionally write your caffeine to Health. This data stays on your device. Caffff has no servers, no analytics, and no tracking. Privacy Policy: https://akselcb-sketch.github.io/caffff-legal/privacy-policy.html Terms of Use (EULA): https://akselcb-sketch.github.io/caffff-legal/terms.html