BioState vs Vow Fasting

Track Your Fast. Visualize Your Biology. BioState is more than a stopwatch—it’s a metabolic compass. While other apps just count down the minutes, BioState uses your fasting data to visualize exactly what is happening inside your body. Built for biohackers, intermittent fasters, and those seeking cellular health, BioState bridges the gap between effort and biological insight. THE FIVE METABOLIC STAGES Understand the science of your fast. BioState tracks your progression through five distinct biological phases based on your elapsed time: • Anabolic (0-4h): Your body processes your last meal. • Catabolic (4-16h): Transitioning from glucose to fat-burning. • Ketosis (16-24h): Fat-burning is fully initiated as primary fuel. • Autophagy (24-72h): Cellular "cleanup" and regeneration begins. • Deep Reset (72h+): Maximum immune system and hormonal reset. ENGINEERED FOR THE MODERN iPHONE Get the data you need without ever unlocking your phone. BioState utilizes the latest iOS technology to keep you informed: • Live Activities: See your active timer and current metabolic stage on your Lock Screen. • Dynamic Island: Monitor your progress at a glance while using other apps. • Home Screen Widgets: Beautifully designed widgets to keep your goals front-and-center. THE "TIME MACHINE" EDITOR Life happens. If you forgot to start your timer, our intuitive "Time Machine" feature allows you to retroactively edit your start time. Your history and metabolic data stay 100% accurate, no matter when you remembered to tap "Start." PRIVACY & SIMPLICITY Your health data is personal. • No accounts or logins required. • No tracking or personal data collection. • 100% On-Device: Your data never leaves your iPhone. UPGRADE TO BIOSTATE PRO Take your fasting journey further with Pro features: • Unlimited History: Look back at every fast you’ve ever completed. • Exclusive Widgets: Access premium widget styles for your Home Screen. • Support Independent Devs: Help us continue building the most transparent fasting tool on the App Store.

Vow is a refined intermittent fasting tracker built for calm daily discipline. Start a fast, follow your progress, and understand each stage as your body moves through metabolic phases like digesting, fat burning, ketosis, and autophagy. Vow keeps fasting focused with a precise timer, clear progress, thoughtful reminders, and a minimal dark design made for daily practice. Whether you follow 16:8, 18:6, 20:4, 24-hour fasts, or custom fasting goals, Vow helps you track every session with clarity. FEATURES • Elegant fasting timer with real-time progress • Intermittent fasting plans including 16:8, 18:6, 20:4, and 24h • Metabolic phase tracking from digesting to fat burning, ketosis, and autophagy • Fasting history, streaks, and weekly insights • Custom and extended fasting durations • Goal reminders and phase update notifications • Minimal dark interface with premium themes • Home Screen widgets and Live Activity support Vow Pro Unlock extended fasting protocols, custom durations, premium themes, advanced insights, and premium widgets. Vow is not medical advice. If you have a medical condition, are pregnant, under 18, or have a history of eating disorders, consult a healthcare professional before fasting. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vowfasting.com/privacy