Flexion vs Cafactor

Flexion - AI Personal Trainer. Your eyes in the gym. Meet your new workout partner. Flexion combines computer vision powered form analysis with a coach you can actually talk to—helping you train smarter, stay consistent, and see results faster. TRAIN WITH CONFIDENCE Upload a video of any lift and get instant feedback on your form. Visual Highlights show you exactly what to fix with color-coded annotations on each frame—green for what you nailed, red for what needs work. YOUR COACH, YOUR WAY Chat naturally with your AI trainer to log workouts, track your nutrition, ask questions, and get personalized insights. Just say "bench 185 for 10" or take a picture of your food and your coach handles the rest. Choose from 4 coaching personalities—from high-energy motivation to calm, methodical guidance. KEY FEATURES • Video Form Analysis – Frame-by-frame technique evaluation • Visual Highlights – See exactly what your coach is pointing at • Conversational Logging – No more tapping through forms • Nutrition Tracking — log meals, scan barcodes, track macros, and set custom targets for training and rest days • Program Upload — Upload PDF training programs directly in chat for your AI coach to follow • Progress Insights – Charts and stats, just ask • 4 Coach Personalities – Find the voice that motivates you WHO IT'S FOR • Beginners learning proper form • Lifters who want real feedback, not guesswork • Anyone serious about injury prevention • People who hate clunky workout apps PRIVACY FIRST Your videos are processed securely and never shared. Start training smarter. Download Flexion. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.flexionapp.com/privacy

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.