The player chooses the evidence.
The frame and shuttle marker remain visible before the estimate is produced.
Badminton Speed Meter
How fast was that smash?
An iPhone and iPad training tool I built to estimate shuttle speed from a player’s own video.
Sample result
10.6 km/h
From the real training clip shown on this screen.
- 01Find contact.
Move frame by frame to the instant the racket meets the shuttle.
- 02Mark the shuttle.
Place the marker on the exact shuttle position used for analysis.
- 03Review the estimate.
See the result with its training-reference notice kept visible.
Why I built it
It started after practice.
I wanted a better answer than “that looked fast.” Badminton Speed Meter turns a short practice or match clip into an estimated shuttle speed while keeping the important choices visible to the player.
I built the product flow around four actions: choose a video, find the exact impact frame, mark the shuttle, and review the result. History then keeps the clip and estimate together so the player can return to them during later training.
The result is an estimate, not a certified measurement. Video clarity, frame rate, camera angle, and marker placement all affect the number.
How it works
Four choices, kept clear.
The app shows which frame and shuttle position the estimate uses.
01
Choose a clip
Start with a short, steady badminton video from practice or a match.
02
Find contact
Move frame by frame to the instant the racket meets the shuttle.
03
Mark the shuttle
Tap the shuttle on the selected frame before the analysis begins.
04
Review the estimate
See the speed in km/h and return to the clip later from History.
Inside the app
The controls stay visible.
Two real screens from the marking and review flow.
Results stay connected to clips.
Earlier analyses can be reviewed without a public profile or social feed.
No account and no public posting.
Uploaded videos are used for private analysis and can be removed from History.
Badminton Speed Meter
Bring your next smash to the app.
Free on iPhone and iPad with iOS 16.4 or later. No account is required, and the app is available in English and Simplified Chinese. Results are for personal training reference only.