O'lin vs Bars

O’lin is a clean and simple intermittent fasting tracker designed to help you stay consistent and build healthier habits over time. Whether you’re following 16:8, 18:6, OMAD, or a custom fasting schedule, O’lin gives you the tools to track your routine and understand your progress — without distractions. FEATURES • Fasting schedules — adjust fasting and eating windows to fit your lifestyle • Progress & patterns — understand your fasting habits over time • BMI & weight tracking — track weight with helpful context • Minimal design — focused, calm, and easy to use • One-time purchase — no subscriptions O’lin is built for people who value simplicity, clarity, and consistency. Fast with intention. Stay consistent with O’lin.

Track your eating and fasting windows on a visual timeline. See your days at a glance, spot patterns, and build better habits. No accounts, no servers, no nonsense. SIMPLE BY DESIGN Most fasting apps bury you in calorie counts, meal logs, streak guilt, premium plans and articles. Bars does one thing well: it shows when you eat and when you don't. Tap to start, tap to stop. That's it. YOUR DATA STAYS YOURS No accounts. No servers. No tracking. No data collection. Everything syncs through your private iCloud. Only you can see it. 100% free. No paywalls. No subscription. No hidden costs. SEE THE FULL PICTURE Connect Apple HealthKit to overlay sleep and workouts on your daily timeline. See how your eating window lines up with recovery, training, and rest without switching between apps. BUILT FOR Biohackers, intermittent fasters, health conscious professionals, habit builders, and anyone curious about how meal timing affects how they feel. HOW IT WORKS Tap to open your eating window Tap to close it Watch your days stack up on a clean visual timeline Optional: Connect HealthKit to layer in sleep and workout data WORKS WITH LONGEVITYDECK If you use LongevityDeck, Bars can sync your eating windows directly to your protocol timeline. See fasting alongside every other protocol you track. All in one place. Both apps are free. IMPORTANT: This app is for informational and educational purposes only. Always consult with your doctor or qualified healthcare provider before making any medical decisions or changes to your health routine.