ShuttleReflex: Badminton Drill

Cooltime Studio

Contains adsIn-app purchases

About this app

Stand your phone at the net and move to the corner it calls, by screen or by sound.
ShuttleReflex is a reaction trainer that makes solo badminton shadow footwork focused and fun.
No partner or coach needed: react to random calls, move, swing, and recover to the center, again and again.

Great for club players, coaches running lessons, and student athletes.

■ Five training modes
· Random calls: shadow footwork to random corner calls
· Tempo up: the gap between calls gets shorter as the set goes on
· Interval: work and rest in rounds
· Pattern: build your own corner sequence and repeat it
· Hand reaction test: hold the phone, tap the lit corner, and get your reaction time in ms

■ Signals for your eyes and ears
· Screen: the corner lights up on the court with a big arrow you can read from across the court
· Voice: coach style calls like "Front left!"
· Number calls: corners called by number
· Directional tone: left and right in stereo, front and back by pitch (earphones recommended)
· Color: a fixed color for each corner to train color to position mapping
· Combine several signals at once

■ Set it up your way
· 4 corners, 6 corners, or 8 directions
· Adjust set length, call interval (fixed or random range), number of sets, and rest time
· Option to avoid the same corner twice in a row
· Built-in presets: Beginner 4 corners, Basic 6 corners, Speed up, Ears only
· Save your favorite setups as presets

■ A screen built for training
· Screen stays on in full screen mode during training
· Place the phone in landscape for the biggest court view
· 3, 2, 1 countdown before you start and a rest countdown between sets
· Double tap to pause, and training pauses automatically when you leave the app
· Player view or mirror view, plus forehand and backhand labels
· Audio delay calibration for Bluetooth earphones

■ Track your progress
· Session history, calendar, and weekly training time chart
· Hand reaction average, personal record, accuracy, and a reaction heatmap by corner
· Taps before the signal count as anticipation, so your times stay honest
· A celebration when you set a new personal record
· Save and share your result card as an image

■ Also included
· Daily reminder at the time you choose
· Dark and light themes, plus a high contrast palette for color vision deficiency
· No sign in needed, and all your records stay on your phone

■ PRO (one time purchase, not a subscription)
· No ads
· 8 direction mode
· Cognitive load options: mirror moves and choice reaction
· Unlimited patterns and presets
· Detailed per corner reaction trends

Note: footwork modes do not measure your actual movement time. They record calls and completion. Reaction time in ms is measured in the hand reaction test.