Photo-finish stopwatch

Capture professional, high-precision photo-finish results for any race using just your smartphone!

Photo Finish Stopwatch turns your device into a powerful timing tool using the same slit-scan technology seen in professional sports. Get definitive proof and accurate times down to 0.05 seconds. No more disputes—see the winner cross the line!

KEY FEATURES:
✅ High-Precision Timing: Measure finish times with an accuracy of ~0.05s.
✅ Visual Proof: Generate a time-stamped, slit-scan image that clearly shows the finish order.
✅ Save & Share: Save the photo finish image or a video of the moment. Easily share the results with athletes, parents, or officials.
✅ Determine Winners: Instantly resolve close races with frame-by-frame analysis.

HOW IT WORKS:
The app continuously photographs a narrow "slit" of the finish line, stitching each sliver into a single image. Every part of this final image has a precise timestamp. Simply scroll the picture to the exact moment an athlete crosses the line to see their official time.

EASY TO USE:
1. Align the camera's guide line with the finish line.
2. Start the stopwatch when the race begins.
3. Tap 'Record' as the athletes crosses the finish.
4. App will automatically capture image and video of 2 seconds before and 2 seconds after the button pressed.
5. Scroll the resulting image to find the exact finish time for each competitor!

ADVANCED FEATURES FOR PROS:
● Stopwatch Sync (NTP): Synchronize the race start time across multiple devices using NTP technology. Set one phone as the "server" and others as "clients" to capture multiple angles, all perfectly in sync.

● Precise Start Time: Did you miss the start? No problem. Record the starting gun (sound & flash), find the exact frame of the start, and copy its timestamp to use as the official "Time Zero" for the race.

● Starting Gun Mode: Use your device to start the race! It provides a loud sound and a camera flash signal for a clear start.

● Remote Control: Place your phone on a tripod for stability and use your volume buttons, a Bluetooth remote, or your headset to start/stop the stopwatch and recording.

● Full Control:
• Adjust settings like slit-width (for fast vs. slow athletes) and recording direction.
• Use the gallery to review your history of saved finishes.
• Pinch-to-zoom on results for indisputable close calls.

Stop guessing. Start timing. Download Photo Finish Stopwatch and bring professional accuracy to your next race!

Recent changes:
Fixed preview on the devices that does not support high-speed video.