Trailium - Star Trails & Sky

Turn your night sky photos into breathtaking star trails, timelapse sequences, and trail videos—all in one powerful app. Whether you're an astrophotographer or just love stargazing, this app transforms your sky images into stunning celestial motion. DSLR-style night-sky results with just a phone + tripod, no laptop.

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Accessibility permission (Pro Capture): Trailium uses Android's AccessibilityService API for one optional feature — Pro Capture's automatic shutter. When you start a Pro Capture session, the service presses your camera app's shutter button for you at a steady pace so you can capture long star-trail sequences hands-free. The service only performs taps during a session you start; it cannot read your screen and does not collect, store, or share any personal or sensitive data. You can disable it anytime in Android Settings → Accessibility.