SprintFrame Photo Finish

SprintFrame Photo Finish is a paid, local-first finish-line review desk for track clubs, school meets, coaches, race directors, and independent officials. Import a real finish-line video from Files. The app copies the source into private local storage and extracts the frame at the exact review time. Set the verified source FPS, reference time, lane count, and finish-line position, then move backward or forward by one or ten frames. For each lane, stop on the first frame where the athlete's torso reaches the finish line and stamp that source frame. Add athlete name, bib, and lane-specific notes. SprintFrame orders the field by crossing frame, converts each frame into a precise result time, and calculates the gap to the winner. Equal-frame crossings use a deterministic lane ordering while keeping the original frame evidence visible. The official result view highlights one-frame margins that deserve source retention. Duplicate a full review as a revision, preserve event, venue, heat, source rate, reference time, and judge notes, then export placement, lane, bib, athlete, frame, time, gap, and note as CSV. No login is required. The app has no subscription, in-app purchases, ads, analytics, tracking, cloud sync, AI processing, or developer-server upload.