Sistens vs NattyKing

Sistens enables users to submit two pictures which we then use to create your BioStructural Analysis report. The purpose of the analysis is to look for structural deviations of the body so we can recommend corrective techniques & exercises.  BioStructural deviations have been shown to lead to degenerative disc disease (DDD) and/or osteoarthritis (OA) of the spine. Correcting these deviations helps prevent DDD & OA from occurring and improves overall health, performance, spinal hygiene, and well-being.

Your testosterone. Your protocol. NattyKing is the first protocol tracker purpose-built for natural testosterone optimization. Track 25+ evidence-based protocols, monitor your T-levels with bloodwork logs, and measure your daily optimization effort with the Natty Score. PROTOCOL STACK Browse 25+ curated protocols across 12 categories: • Sleep Optimization • Morning Light Exposure • Compound Lifting & Training • Breathing Techniques • Stress Management • Supplementation (tiered by evidence level) • Cold & Heat Exposure • Lifestyle Optimization • Diet & Nutrition • Sexual Health • Biohacking Each protocol is scored by scientific impact so you know what moves the needle most. DAILY CHECK-INS One-tap tracking for every protocol in your stack. Build streaks, maintain momentum, and stay consistent. Your daily effort is reflected in a single weighted metric — the Natty Score. T-LEVEL TRACKING Log testosterone bloodwork results over time. Visualize trends, correlate with protocol adherence, and measure real progress with data instead of guesswork. BODY COMPOSITION Track InBody scans and body fat percentage alongside your T-levels. See the full picture of how your protocols impact your body. MINDSET LAB AI-powered sessions designed to rewire mindset patterns that impact hormone production, motivation, and daily discipline. NATTY SCORE A single weighted score reflecting your daily optimization effort. Higher-impact protocols earn more points. Watch your score climb as you build consistency. FREE TO START • Up to 5 protocols with basic daily tracking • Streak counter and protocol library browsing PRO — UNLOCK EVERYTHING • All 25+ protocols across 12 categories • T-Level and body composition tracking • Mindset Lab sessions • Advanced analytics and scoring • Protocol reminders and insights NattyKing is not a medical application and does not provide medical advice. Always consult a healthcare provider before starting any new health protocol.