Cafactor vs Nanocal

Caffeine Hourglass is now Cafactor — rebuilt from the ground up. What began as a simple caffeine timer has evolved into a full physiological model that adapts to your biology in real time. Version 2.0 isn't an update. It's a new category of health tool. Know your caffeine. Protect your sleep. Log a drink in seconds. Cafactor computes your real-time caffeine curve using a peer-reviewed pharmacokinetic model — complete with a realistic absorption phase, first-order decay, and your personal biological parameters. See whether you can safely have one more coffee, and exactly when your levels will drop below your personal sleep threshold. Personalised to your body Set your sex, height, weight, and age. Cafactor applies the Boer (1984) lean-body-mass formula to calculate how caffeine distributes in your specific body. Add smoking status, hormonal medication, or pregnancy for a half-life that's truly yours. Your tolerance to caffeine — derived automatically from 7-day history — rounds out the picture. HealthKit: exponentially smarter Connect Apple Health and Cafactor transforms from a tracker into an adaptive metabolic coach: • Exercise modifier — Recent vigorous workouts temporarily speed up your metabolism. Cafactor detects this from HealthKit and adjusts your decay curve automatically. • Sleep-adaptive threshold — Last night's poor sleep tightens your safe window today. Great sleep? More room for your morning ritual. • HRV & Recovery (Apple Watch) — Daily heart-rate variability fuses with sleep quality to create a PhysiologicalState score, shifting your optimal intake windows and adjusting thresholds by up to 40%. • Progressive calibration — Recency-weighted regression over 30 days of sleep and HRV feedback automatically refines your personal half-life, growing from Preliminary to Reliable confidence as data accumulates. Pro features Unlimited history · Trend, sleep quality and scatter charts · Last safe caffeine time · Four smart notifications (morning window, safe window, withdrawal, recovery) · Shareable weekly report · Siri shortcuts · Unlimited custom drinks Free, forever, offline Core tracking is always free. No account. No internet. No data leaves your device — ever.

Nanocal is the simplest way to track what you eat. No account, no clutter, no endless food databases. Log meals like taking notes: just describe your meal and see your calories and macros. LOG A MEAL IN SECONDS • Type it: "2 eggs and a glass of milk". Typos and everyday language are fine. • Snap it: take a photo of your plate, or choose one from your library. • Scan it: point your camera at a barcode for packaged food. • Or enter it yourself with manual logging. AI estimates each food's portion, calories, protein, carbohydrates and fat, and you can edit every value before or after saving. STAY ON TOP OF YOUR DAY • Clear daily totals for calories, protein, carbs and fat • Set your own daily goals and see how much is left • Weekly calorie chart and statistics • Favorites to re-log your usual meals in one tap • Gentle daily log reminders and a weekly summary AVAILABLE IN ENGLISH, FRENCH AND TURKISH TRY FOR FREE Try Nanocal free for 3 days, then continue with a monthly subscription. Payment will be charged to your Apple ID account at the end of the free trial. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. You can manage or cancel it anytime in your Apple ID account settings. Nanocal provides nutritional estimates for informational purposes only. AI can make mistakes. It is not medical advice and is not intended to diagnose, treat, cure or prevent any disease. Consult a healthcare professional before making dietary or medical decisions. Terms and Conditions: https://nanocal.app/legal/terms-en Privacy Policy: https://nanocal.app/legal/privacy-en