Orbweft Star Trails

Turn a fixed-camera night sequence into one finished image, entirely on your Android device. FOUR TRAIL STYLES Full keeps the brightest RGB values across included frames. Comet fades earlier frames toward the final frame. Javelin emphasizes the middle of the sequence. Average takes equal-weight channel averages. REVIEW YOUR SOURCES Include or exclude frames, move them earlier or later, reverse the sequence, or undo the last frame-order or inclusion edit. Switch between a selected source and the computed stack. Sessions keep local source copies and settings, so your original files stay unchanged. CONTROL THE FINISH Adjust exposure, trail fade, optional dark-frame subtraction and first-frame foreground preservation with a soft boundary. Build a preview before exporting. Set a 1024, 2048 or 3072 pixel long-edge limit; smaller sources are never enlarged. KEEP A COMPLETE RESULT Export a flattened PNG and JPEG plus a six-file ZIP containing both images, Frames.csv, Session.json, Processing.pdf and Readme.txt. Saved exports are independent of later session edits or deletion. Reopen them from Library to share or save individual files with Android's system controls. LOCAL, PAID ONCE No account, ads, analytics, in-app purchases or subscription. Photo processing works offline. An optional, clearly labeled 48-frame synthetic example runs through the same compositor as your own imports. LIMITS Use matching oriented image dimensions from a stationary camera. Up to 120 frames per session, 32 MB per file and 512 MB of sources per session. TIFF supports RGB or grayscale stills on its first page, up to 32 megapixels; other supported stills may be up to 120 megapixels. Keep up to 20 sessions and 30 saved exports within a 1 GB local library. Large sources and outputs can require more memory; choose a smaller output size if needed. Processing uses decoded 8-bit sRGB channel values, not linear-light or RAW/HDR development. Orbweft does not align stars, fill trail gaps, remove aircraft automatically, capture photos or make timelapse videos. Packages exclude original photos and EXIF and are not editable-session backups. Keep important originals and shared copies separately; uninstalling removes local app data. Screenshots show the app's labeled synthetic example, not a real astronomical exposure sequence.

Initial Android release: local star-trail stacking, source review, dark-frame subtraction, foreground preservation and independent image/processing-package exports.