Run Window vs KoopAI

You already know you want to run today. The only question is when. Run Window is the running weather app that gives you one answer. Tell us what conditions you actually like — cold mornings, humid afternoons, a little rain — and we'll scan the hourly forecast for the best time to run today. Your best running window shows up the moment you open the app. No guessing. No cross-referencing three weather apps. Just: here's your hour, go. Try Run Window free for 7 days — no credit card required. After your trial, plans start at $5.99/month. WHO IT'S FOR Runners who run outside. Marathon training, easy days, race-week tapers, the half-marathon block you can't skip. If your schedule has a 2–4 hour window most days, Run Window finds the hour inside it where conditions line up — temperature, humidity, wind, dew point, AQI, all of it. HOW IT WORKS We start with four quick scenarios: would you head out in 35° wind? 88° humidity? Steady rain? Your answers build a comfort profile that scores every hour of the forecast against what you actually enjoy. The result is a window — a specific block of time where conditions line up for you. Not some generic "good running weather" label. Your window, based on your preferences. WHAT YOU GET • Your best window — open the app, see exactly when to go • 16 days of hourly forecasts — scored and ranked to your comfort zone • Weather watch — we track conditions for your planned runs and tell you if anything shifts • Learns from your runs — tell us how it felt, and your windows get sharper • Plan your week — see seven days at a glance, mark rest days, build your schedule around the weather • Backup windows — not just the best hour, but your second and third options too BUILT FOR RUNNERS WHO RUN OUTSIDE We know you're going regardless. Run Window just helps you pick the hour where it'll feel the best. And when conditions are genuinely rough, we'll say so — no sugarcoating. We watch the running weather forecast. You go run. Terms of Use: https://runwindow.com/terms Privacy Policy: https://runwindow.com/privacy

KoopAI is your AI ultrarunning coach, with personalized training based on Jason Koop's coaching methods. Prepare for your next ultra with a plan built around your experience, recent training, available time, and target races. See your daily workouts, understand your progression, and ask your AI coach what to do next and why. Keep your training plan, completed activities, and workout feedback together, and adjust your plan when your schedule changes. With KoopAI you can: • Follow a personalized ultrarunning training plan • Review daily workouts and week-by-week progression • Ask an AI coach questions about your plan, training, and race preparation • Record completed activities and provide workout feedback • Review volume, elevation, fitness, and fatigue trends • Connect supported activity providers to keep your training history up to date • Adjust your plan when your schedule or circumstances change KoopAI supports athletes preparing for trail races and ultramarathons, from 50K events through 100- mile, 200-mile, and multi-day races. Some features require an auto-renewing subscription. Training information is for educational purposes and is not medical advice. Privacy Policy: https://www.koopai-endurance.com/app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/