Sluip

• Live GPS tracking with speed, distance, elevation, and route map

• Weather forecasts with rain alerts, wind speed, and air quality

• Tailwind compass — suggests which direction to ride so you return with the wind at your back

• Animated route replay with elevation and pace overlay

• Offline route planner with cached map tiles

• Physics-based calorie estimation and heart rate zones

• Per-kilometer/mile splits with fastest split highlighted

• Achievements, streaks, and contextual encouragement in EN/NL/DE/FR

• 1080×1080 shareable route images, GPX and CSV export

• Installs as a PWA on iOS, Android, and desktop — no app store needed

• WCAG AAA accessibility in light and dark themes

• Backup and restore via JSON file

• All data stored locally in IndexedDB — zero data leaves your device

• Daily bike commuters who want ride logging without a Strava account
• Anyone who wants a one-time-purchase cycling app instead of a subscription
• Fitness-minded riders tracking calories, heart rate zones, and weekly mileage
• Weekend road cyclists tracking long rides, elevation, and pace splits