About
Train your reaction time for competitive swimming with millisecond-accurate timing and authentic starter sequences. Compete with yourself and others globally, and access daily training videos from a leading swim education provider.
What's New in GoSwim
1.0
May 13, 2026
Developer apps
FAQ
What is GoSwim: Reflex?
GoSwim: Reflex is a mobile application designed to help competitive swimmers improve their reaction time off the starting block. It simulates an authentic competitive starter sequence with randomized delays and provides millisecond-accurate timing.
How does GoSwim: Reflex measure reaction time?
The app utilizes Apple's high-resolution timers to achieve millisecond-precision in measuring your reaction time. It also includes false-start detection, disqualifying you if you release too early, just like in a real competition.
Can I compete with others using GoSwim: Reflex?
Yes, you can compete with yourself, your teammates, and swimmers around the world through local leaderboards. The app is designed to track your progress and encourage consistent improvement.
Does GoSwim: Reflex offer training content?
Yes, GoSwim: Reflex features a daily training video from the GoSwim library, which is the global leader in swim training education. These videos offer insights from elite coaches on technique, drills, and race strategy.
Is GoSwim: Reflex suitable for all competitive swimmers?
The app is perfect for competitive swimmers ranging from age-group to college and masters levels. Swim coaches can also use it to train reaction speed with their teams, and triathletes can benefit from improving their swim leg starts.
What devices does GoSwim: Reflex support?
GoSwim: Reflex is available on iPhone, iPad, and iPod. It is built by Go Swim Productions, LLC, a company with over 20 years of experience in swim technique education.
How often is GoSwim: Reflex updated?
The application was last updated on May 13, 2026, with version 1.0. Future updates are planned to include cloud-based leaderboards, account sync across devices, and push notifications for daily challenges.
Does GoSwim: Reflex have ads?
No, GoSwim: Reflex does not contain advertisements. It offers a clean, distraction-free interface designed for use at the poolside.