SOL vs Fasting Window

SOL (솔) — Korean for Pine Tree. Like the pine that endures through every season, SOL stands with you through every fast. WHAT MAKES SOL DIFFERENT Most fasting apps just show a timer. SOL shows you what's actually happening inside your body — in real time. As you fast, SOL guides you through each biological phase: Fed State → Insulin Dropping → Fat Burning → Ketosis → Autophagy → Deep Autophagy → Growth Hormone Surge → Immune Reset FEATURES • Beautiful minimal timer with progress ring • Real-time body phase updates with scientific sources • Full body timeline — see all 8 phases and your progress • Tap any phase for in-depth science and PubMed sources • Smart notifications at each milestone • Stats dashboard — track your fasting journey • Background timer — keeps running when you close the app • Light & dark mode with handcrafted watercolor textures • Home screen widget • Community pulse — you're not fasting alone • Share your results with a beautiful card FASTING GOALS Choose from 16h, 18h, 20h, 24h, 36h, 48h, 72h, or go Open with no time limit. Hit your goal? Extend to the next level. DESIGNED WITH INTENTION SOL is inspired by the simplicity of nature. No clutter, no ads, no unnecessary features. Just you, your fast, and the knowledge of what your body is doing. All body phase information is based on peer-reviewed scientific research with direct links to PubMed sources. Begin your fast. Know your body. Grow like the pine.

Record your fasting time with a simple timer. TRACK YOUR TIME • Select 16:8, 18:6, 20:4, OMAD, or the Custom preset • Circular progress ring with elapsed-time ranges • Notification at your selected time goal, when permission is granted KEEP YOUR RECORDS • Local fasting history and streak count • Existing weight records remain stored on your device SAFETY INFORMATION The timer does not measure metabolism, ketosis, or autophagy. It does not diagnose conditions or provide medical advice. Goals are personal settings, not recommendations to fast longer. Talk with your healthcare provider before trying fasting, especially if you are under 25, pregnant or breastfeeding, or taking medication. Source: NIH News in Health, December 2019; https://newsinhealth.nih.gov/2019/12/fast-or-not-fast