Cafactor vs My Reps

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.

Reps is a workout logger built for lifters. The kind who track progressive overload, care about recovery, and want every action done in two taps or less. STRENGTH LOGGING Build workout templates with target sets, reps, rest intervals, and progression rules. Templates assign to days of the week so your split is always one tap away. During a session, weights pre-fill from your last logged set. Log a set, start the rest timer, and Reps is ready for the next one before the timer finishes. Reorder exercises mid-session, swap substitutions, run supersets, and add notes without interrupting the flow. Personal records are detected automatically. RECOVERY & HEALTH SCORES Reps reads Apple Health to show recovery context alongside your training log. Every score is computed on-devicre, HealthKit data never leaves your phone. REST TIMER & LIVE ACTIVITY One tap after logging a set starts the timer. It runs on the lock screen, in the Dynamic Island, and in the app simultaneously. WIDGETS Today's assigned workout, most recent PR, current streak, step count, and live energy battery — available as home screen and lock screen widgets. GOALS Weekly, monthly, or yearly workout and duration targets with progress tracked in real time. SOCIAL Follow lifters, like sessions, leave comments, and share workouts to a feed.