Simple Fasting App vs Fastly

A clearer way to follow your fast—built around your time, not your data. Simple Fasting App gives you a calm, focused place to plan a fast, follow your progress, and understand your routine. No ads, subscriptions, in-app purchases, or account required. CHOOSE YOUR RHYTHM Choose 12:12, 16:8, 18:6, 20:4, or a 24-hour fast—or set a custom duration. Adjust your start time when your day changes, and finish a fast early whenever you need to. FOLLOW EVERY FAST See elapsed and remaining time, start and end times, your current plan, and completion status in one clear live view. An optional reminder can let you know when your planned fasting window ends. EXPLORE FASTING INSIGHTS Choose whether to see time-based fasting stage estimates as your fast progresses. Each stage includes clear context so you can understand what the estimate means—and what it does not. UNDERSTAND YOUR ROUTINE Review completed sessions, total fasts, average duration, your longest fast, weekly averages, and monthly patterns. Open any day to see its timeline and session details. KEEP PROGRESS IN VIEW Follow an active fast beyond the app with Home Screen widgets, Live Activities, and Dynamic Island on supported iPhone models. MAKE IT YOURS Choose light, dark, or system appearance and select an accent color that suits you. PRIVATE BY DESIGN No sign-up. No account. No ads. No subscriptions. No in-app purchases. Your fasting history stays on your device, and Simple Fasting App does not collect or sell your data. Fasting stages are general estimates based on elapsed time. They do not measure your individual metabolic response and are not medical advice. Fast with clarity, at your own pace.

Fastly is a clean, private fasting timer for 16:8, 18:6, OMAD, and custom schedules—without ads, accounts, or distractions. Start a fast with one tap, adjust your start or end time when needed, and see your elapsed time, remaining time, and planned finish at a glance. Fastly keeps the experience focused while giving you the tools you need to understand your routine and track your progress. FOLLOW YOUR FAST See estimated fasting phases based on your elapsed fasting time, including digestion, fat burning, ketosis, and autophagy. Upcoming phase markers make it easy to see what comes next during your fast. TRACK YOUR PROGRESS Review your complete fasting history through clear statistics, charts, and progress insights. Set weight and body fat goals, and optionally connect Apple Health to keep your measurements organized. STAY ON TRACK EVERYWHERE Follow your fasting status from your iPhone, Apple Watch, Home Screen widgets, and complications. Smart reminders help you stay aware of fasting goals and eating windows without unnecessary interruptions. KEY FEATURES • Real-time fasting timer with elapsed and remaining time • Planned fasting end time displayed at a glance • 14:10, 16:8, 18:6, 20:4, OMAD, and custom plans • Estimated fasting phases for digestion, fat burning, ketosis, and autophagy • Upcoming fasting phase markers • Complete fasting history with statistics and charts • Weight and body fat goals with progress benchmarks • Apple Health integration for weight and body fat • Apple Watch app and complications • Home Screen widgets for quick progress checks • Smart fasting and eating-window reminders • Optional private iCloud synchronization • Dark mode and a clean, focused interface PRIVATE BY DESIGN No ads. No third-party analytics. No developer data collection. Your fasting and health information stays on your devices and, when optional synchronization is enabled, in your private iCloud account. IMPORTANT NOTE Fasting phases are estimates based on elapsed time and can vary from person to person. Fastly is intended for general wellness and fasting tracking only. It does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before making medical or dietary decisions.