Support
Badminton Speed Meter Support
For support, privacy questions, data deletion requests, or bug reports, email zhiwudawang@outlook.com.
How to use the app
- Choose a badminton training video from your device.
- Upload the video for private analysis.
- Select the frame where the racket contacts the shuttle.
- Mark the shuttle position as accurately as possible.
- Review the estimated shuttle speed in km/h.
Common troubleshooting
- Use a clear video where the shuttle and racket are visible near impact.
- Avoid clips with heavy blur, extreme camera shake, or the shuttle hidden behind a player.
- If the estimate looks wrong, reselect the impact frame and mark the shuttle position again.
- Make sure the app has the iOS photo or camera permission needed for the action you are trying to take.
Upload or analysis failure
- Check your internet connection and try again.
- Try a shorter or smaller training clip if the upload repeatedly fails.
- Close and reopen the app if the upload appears stuck.
- If the issue continues, contact support with your device model, iOS version, app version, and a short description of what happened.
Delete uploaded videos from History
- Open the History screen in Badminton Speed Meter.
- Select the uploaded video or history item you want to remove.
- Use the delete option and confirm deletion.
- If you cannot delete an item in the app, email support and request deletion.