Sun Trail

SunTrail is your reliable, 100% offline outdoor companion designed to help you track solar transit, understand natural daylight cycles, and navigate using the sun without relying on digital compass sensors or network connectivity.
Whether you are hiking remote trails, setting up a backcountry campsite, planning golden-hour photography, or practicing wilderness navigation skills, SunTrail provides the essential tools to master daylight and orientation directly from your pocket.
☀️ Key Features
• Interactive Solar Dial: Simulate the sun's trajectory across the sky throughout the day. Visualize solar angles, azimuth transitions, and cardinal alignments from sunrise in the East to sunset in the West.
• No-Sensor Shadow Navigation Guide: Learn and apply time-tested natural orientation techniques. Discover how to determine True North and East-West baselines using simple shadow sticks, solar noon transit, and analog watch alignments—no magnetometer or GPS required.
• Daylight & Golden Hour Phases: Plan outdoor activities around precise lighting windows. Quickly reference Civil Twilight, morning/evening Golden Hours, Solar Noon, and Nautical Dusk for safer trail scouting and optimal landscape photography.
• Offline Field Observations Log: Record on-site waypoints, solar alignments, and field notes directly to your device storage. Keep track of camp setups, observation times, and trail markings safely offline.
• Battery-Conscious & Zero Permissions: Built entirely with lightweight modern Android components. SunTrail requests zero sensitive system permissions, runs without internet, and includes a high-contrast dark theme optimized for outdoor clarity and battery longevity.
Navigate naturally and plan every outdoor hour with clarity using SunTrail.