SwimStart: Start ReactionSwimStart: Start Reaction
The race is decided before you hit the water. SwimStart times the gap between the signal and your take-off, so you can chip away at it rep after rep.
Download on the App StoreFeatures
The Start Sequence, As It Happens
Countdown, the "Take your marks" command, then the start tone. The pause after the command is randomised every time, so there's no rhythm to learn and anticipate. Move too early and it's logged as a false start.
Timed to the Millisecond
Reaction time is measured on a monotonic clock, so your device's date and time settings never skew it. Today's number can be lined up directly against one you set six months ago.
Track the Improvement in Numbers
Every attempt is saved with the date, the reaction time and whether it was a false start. Your best, your average and your false start count sit right up front, with the full history in one list.
Built Around Your Session
Switch the spoken "Take your marks" command on or off. Set the length of the countdown and the range of the random delay before the signal.
Touch or Motion Detection
Tap the screen to react, or sit the device on the starting block and let motion detection pick up the movement. Practise in whichever form is closest to your real take-off.
Runs on Apple Watch by Itself
It's a standalone Apple Watch app, so your iPhone can stay in your bag. Practice, records and settings all happen on your wrist. The cue comes through as a vibration as well as a sound, so you'll pick it up even when a noisy pool deck swallows the tone.
No Account, Records Stay on Your Device
No sign-up, no login. Install it and take your first attempt straight away. Your records are kept on your device and nowhere else.
Races are won before you hit the water. SwimStart is a start-reaction trainer for swimmers: rehearse the start off the block, measure how long it takes you to move once the signal fires, and cut that number down.
THE START SEQUENCE, FOR REAL
• A countdown, then the "Take your marks" call, then the start tone
• The hold after the call is randomised every time, so you cannot memorise it
• Reaction time is measured on a monotonic clock, so every attempt compares fairly
• Go before the tone and it is flagged as a false start — just like at a carnival
WATCH THE NUMBER COME DOWN
• Every attempt is saved with its date, reaction time and false-start flag
• Your best, your average and how many false starts you racked up
• The whole history sits in one list
MAKE IT MATCH YOUR SQUAD
• Turn the spoken "Take your marks" cue on or off
• Set the countdown length and how wide the wait before the signal can be
• Touch or motion: tap the screen, or stand the device up and let it read the movement
STANDALONE ON APPLE WATCH
• A full Apple Watch app — the phone can stay in your bag
• Practise, records and settings straight from your wrist
• A haptic cue along with the sound, which is a big help on a loud pool deck
SIMPLE AND PRIVATE
No account, no sign-up. Your records stay on your device.
SwimStart is a training aid. It measures your reaction to a signal from your phone or watch and does not replace official starting equipment or a competition timing system.