SparkFast vs FastFlex Fasting Tracker

Most fasting apps count hours. SparkFast shows you what those hours might mean — estimated biological milestones that give you a reason to keep going. THE SPARK CHART Your fasting hours aren't just numbers. The SPARK Chart visualizes five estimated biological processes — from early insulin changes to deep cellular recycling — based on published research. It transforms a blank timer into a roadmap of what you're working toward. GUIDED REFEEDING Breaking a prolonged fast matters as much as the fast itself. SparkFast provides step-by-step refeeding protocols tailored to your fast duration and dietary preference. No more Googling "how to break a 72-hour fast" mid-fast. AI-POWERED PERSONALIZATION Tell SparkFast about your goals, experience, dietary preferences, and schedule. Our AI creates a custom fasting plan built around your life — not a one-size-fits-all template. CHALLENGES THAT BUILD HABITS Built-in challenges — from a beginner-friendly 5-day start to a 72-hour deep fast — give you structure and milestones to work toward. Track progress, earn achievements, and build consistency. BIOMARKER TRACKING (OPTIONAL) For users who track glucose, ketones, GKI, or Dr. Boz Ratio: log readings manually or sync from Keto-Mojo and Apple Health. See how your metabolic data trends alongside your fasting practice. Most users start without this — it's there when you're ready. ALSO INCLUDES - Intermittent and prolonged fasting schedules (16:8, 18:6, OMAD, 36h, 48h, 72h+) - Apple Health integration for weight, sleep, steps, and heart rate - Motivational notifications at key fasting milestones - Eating window and hydration tracking - Stool tracking for gut health awareness - Custom trackers for anything you want to monitor BUILT FROM EXPERIENCE SparkFast was born when co-founder Veronica — who went from a BMI of 32 to a normal BMI through fasting — realized she kept printing charts of estimated biological milestones and sticking them on her kitchen wall to stay motivated during 72-hour fasts. That piece of paper became this app. IMPORTANT The SPARK Chart shows estimated timelines based on published fasting research. Actual metabolic responses vary between individuals based on diet history, metabolic health, and other factors. SparkFast is a motivational and educational tool, not a medical device. YOUR PRIVACY SparkFast does not sell personal data. All information is stored securely and encrypted. SUBSCRIPTION SparkFast requires a subscription for full access. Options include monthly and yearly plans, both with a free trial. Payment is charged to your Apple ID at purchase and renews automatically unless cancelled at least 24 hours before the end of the current period. Manage subscriptions in App Store settings. Terms of Service: https://www.sparkfast.app/terms-of-service Privacy Policy: https://www.sparkfast.app/privacy-policy

FASTFLEX - YOUR FASTING TRACKER REIMAGINED Transform your fasting journey with FastFlex, the intuitive fasting tracker that turns willpower into visual progress. Whether you're practicing intermittent fasting for health, weight loss, or mental clarity, FastFlex makes every hour count. VISUALIZE YOUR PROGRESS Watch your willpower literally conquer hunger with our unique progress visualization. Every passing hour brings you closer to your goal, with dynamic milestones that celebrate your dedication along the way. FLEXIBLE FASTING OPTIONS - Popular fasting schedules: 12:12, 16:8, 18:6, 20:4, OMAD (23:1) - Custom fasting durations for your personal goals - Easy start time adjustment for perfect flexibility - Track multiple fasts with complete history COMPREHENSIVE TRACKING - Fasting Timer: Real-time countdown with milestone celebrations - Journal: Document your fasting experiences, energy levels, and insights - Weight Tracking: Monitor your progress with visual goal tracking - History: Calendar and list views of all your completed fasts MOTIVATIONAL MILESTONES FastFlex keeps you engaged with dynamic milestones throughout your fast: - Digesting phase - Early Fasting benefits - Glycogen Burning begins - Fat Burning accelerates - Ketosis achievement - Autophagy activation Each milestone shows exactly what's happening in your body, keeping you informed and motivated. SMART FEATURES - Color-coded history: Instantly see completed vs. broken fasts - Backdate fasts: Add historical fasts you've completed - Goal celebrations: Special recognition when you exceed targets - Local notifications: Get notified when you reach your goals - iCloud backup: Your data syncs automatically across devices PRIVACY FIRST FastFlex respects your privacy: - All data stored locally on your device - No accounts required - No tracking or data collection - Automatic iCloud backup for peace of mind DESIGNED FOR SUCCESS We built FastFlex with one goal: help you succeed at fasting. The interface is clean, intuitive, and focused on what matters - your progress. No clutter, no confusion, just powerful tracking that keeps you motivated. PERFECT FOR: - Intermittent fasting beginners - Experienced fasters seeking better tracking - Weight loss journeys - Health optimization - Mental clarity and focus - Metabolic health improvement SUBSCRIPTION FEATURES FastFlex Premium gives you full access to: - Unlimited fasting tracking - Complete journal with unlimited entries - Advanced weight tracking with progress visualization - Full history with calendar and list views - All current and future features JOIN THE FASTFLEX COMMUNITY Thousands of users are already transforming their health with FastFlex. Whether you're just starting intermittent fasting or you're a seasoned faster, FastFlex provides the tools and motivation you need to succeed. Download FastFlex today and discover how powerful visual progress can transform your fasting experience. --- SUBSCRIPTION DETAILS: - Monthly: $0.99/month - Annual: $9.99/year (Save 16%!) - Cancel anytime - Payment charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Account will be charged for renewal within 24 hours prior to the end of the current period - Subscriptions may be managed and auto-renewal may be turned off in Account Settings after purchase Privacy Policy: https://orkhanhasanbeck.github.io/fastflex-support/privacy.html Terms of Service: https://orkhanhasanbeck.github.io/fastflex-support/terms.html