Updated Aug 9, 2026 · v5.81.4
Unique 3D solar simulation: plan your hikes based on real shade and sunlight.
⛰️ SunTrail 3D: The ultimate solar expert for your hikes, walks, and mountain adventures. Whether you're a casual walker looking for the sun or a pro alpinist avoiding morning ice, SunTrail 3D is the only app that projects real sun shadows onto actual 3D terrain in real-time. Official HD mapping: SwissTopo (Switzerland), IGN (France), basemap.at (Austria), BKG (Germany), IGN (Spain). Worldwide coverage via OpenTopoMap. ━━━━━━━━━━━━━━━━━━━━━━━ ☀️ EXCLUSIVE: HIKER TIMELINE (PRO) ━━━━━━━━━━━━━━━━━━━━━━━ Stop guessing if you'll be in the sun when you reach that mountain pass. • 3D Colorization: Your track changes color (Gold / Green / Blue) based on solar exposure at your estimated arrival time. • Pace-Aware: The analysis adapts to your walking speed. • Real Shadows: Calculation includes terrain, forests, and 3D buildings for total realism. ━━━━━━━━━━━━━━━━━━━━━━━ 🏔️ ADVANCED 3D ENGINE ━━━━━━━━━━━━━━━━━━━━━━━ • High-Precision Maps: SwissTopo (Switzerland), IGN (France), basemap.at (Austria), BKG (Germany), IGN (Spain), HD Satellite. • Total Immersion: Visualize terrain from any angle with exceptional smoothness. • Live Weather: Animated rain and snow particles directly on the 3D map. • Digital Inclinometer: Measure slopes in real-time for your safety (avalanche risk). ━━━━━━━━━━━━━━━━━━━━━━━ 📍 GPX & NAVIGATION ━━━━━━━━━━━━━━━━━━━━━━━ • Import GPX Tracks: See them "draped" over the actual 3D relief. • Robust Recording: High-precision GPS tracking that works even with the screen off. • Smart Elevation Profile: Distance, elevation gain/loss, slope, and VAM stats. • Offline Mode: Download maps before you go for total autonomy in the mountains. ━━━━━━━━━━━━━━━━━━━━━━━ 🛡️ SAFETY & PRIVACY ━━━━━━━━━━━━━━━━━━━━━━━ • SOS Button: Share your exact coordinates and altitude in one tap. • No Account Needed: No login required, no personal data collected. • Complete Privacy: Your tracks stay on your device. • Independent: Developed with passion, zero ad trackers. ━━━━━━━━━━━━━━━━━━━━━━━ ⚠️ INFORMATION ━━━━━━━━━━━━━━━━━━━━━━━ SunTrail 3D uses official data (swisstopo, IGN, basemap.at, BKG, IGN España) according to their open-data licenses. The app is independent of these entities. Available in English, Français, Deutsch, and Italiano.
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