Supwell vs NSA Running

Supwell is the ultimate app for hobby joggers and running shoe enthusiasts. Whether you're hunting for your next pair of running shoes, looking to sell gently used kicks, or want to connect with a community of passionate runners — Supwell has you covered. BROWSE & SELL RUNNING SHOES Shop the Supwell marketplace for gently used running shoes at great prices. From daily trainers to carbon-plated race day shoes, find your next pair or sell shoes that didn't work for you. IN-DEPTH SHOE REVIEWS Get detailed breakdowns of the latest running shoes on the market. We cover cushioning, ride feel, foam compounds, fit, and more so you can make smarter buying decisions. TRACK YOUR MILEAGE Log your runs and track mileage across all your shoes. Know exactly when it's time to retire a pair and lace up something fresh. HEALTH INTEGRATION Sync with Apple Health to automatically import your workouts and keep all your running data in one place. COMMUNITY & FORUMS Join the conversation with other hobby joggers. Share your runs, ask for shoe recommendations, and get daily motivation from runners who get it. Subscribe for $4.99/month to unlock the full Supwell experience including marketplace access, shoe tracking, and community features. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.supwell.com/privacy

Run Smarter (and harder) with the Norwegian Singles Approach (NSA) Calculate personalized training paces based on the proven Norwegian Singles Approach. Science-backed paces tailored to your fitness. WHAT YOU GET - Sub-threshold interval paces (3, 6, 10 minute reps) - Easy running pace that's actually easy - Distance-based equivalents (800m, 1600m, 2km+) - Race predictions (5K, 10K, Half Marathon, Marathon) - Training structure guidance WHY IT WORKS - 3 sub-threshold workouts per week - Truly easy running on other days - One long easy run weekly - No brutal VO2 max intervals - Sustainable intensity Build fitness without burnout. Quality volume while staying fresh. THE SCIENCE Based on elite Norwegian methods, adapted for everyday athletes by James Copeland. Sub-threshold training just below lactate threshold maximizes gains sustainably. FEATURES INSTANT PACE CALCULATOR Enter 5K time, get personalized paces. Time-based and distance-based options. Heart rate guidance included. TRAINING GUIDANCE Weekly structure, rest intervals, heart rate tips, adjustment strategies. EDUCATION Interactive tutorial, comprehensive FAQ, race prep guidance. PERFECT FOR Competitive runners, intermediate/beginner runners, recreational athletes, former cyclists/triathletes, 4-8 hour/week training volume. HOW IT WORKS 1. Enter 5K time 2. Get personalized paces 3. Follow: Easy → Sub-T → Easy → Sub-T → Easy → Sub-T → Long 4. Time trial every 4-6 weeks 5. Update and improve BEAUTIFULLY SIMPLE No subscriptions. No complicated plans. Just effective training paces. DISCLAIMER Not affiliated with James Copeland. Based on "Norwegian Singles Method: Subthreshold Running Kept Simple." Consult healthcare professional before starting training. Educational purposes only. Purchase the book for complete methodology and detailed plans.