Louder, clearer starts. • The start signal is now noticeably louder, and no longer gets drowned out by music playing in the background. • Choose your start sound: Horn (the two-tone electronic horn used by official starting systems), Beep, or Pistol. • New volume slider, with a test button so you can set the level before you get on the block. • New pre-signal option: a short beep on each countdown number, then one long beep to step onto the block — the same sequence used at real meets — before "Take your marks.

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