# GoSwim: Reflex > Swim start reaction time trainer with authentic competition simulation. (iPhone/iPad app by Go Swim Productions, LLC.) - Source: https://appshunter.io/ios/app/goswim-reflex/id6762532245 (this page in markdown: same URL + `.md`) - Developer: [Go Swim Productions, LLC](https://appshunter.io/developer/933313770) - Category: Sports, Health & Fitness - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 2 MB - Languages: American English - Released: 2026-05-13 - Data updated: 2026-06-26 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/goswim-reflex/id6762532245/reviews.md ## What is GoSwim? Sharpen the moment that wins races. The start. The single most underrated skill in competitive swimming. Olympic swimmers shave hundredths off their reaction time at the block — and now, with GoSwim: Reflex, you can train yours anywhere. What you do: Hold. Wait for the random GO signal. Release as fast as humanly possible. Get scored on your reaction time in milliseconds. Compete with yourself, your teammates, and swimmers around the world. What makes it real: • Authentic competitive starter sequence — randomized delay just like a real meet • Millisecond-precision timing using Apple's high-resolution timers • False-start detection — release too early and you're disqualified, just like on the blocks • 3-attempt sessions with averaged results to measure consistency, not luck • Add more tries when you want to push for a personal best Built by GoSwim — the global leader in swim training. For over 20 years, GoSwim has been the trusted source for swim technique education for elite athletes, age-group swimmers, coaches, and triathletes worldwide. Our video library, used by USA Swimming athletes and coaches across six continents, has set the standard for stroke instruction online. Now we're bringing that same precision to start training. Daily training video: Tap the VIDEO button to access today's featured GoSwim training video — fresh content rotated daily from our extensive library. Watch elite coaches break down technique, drills, and race-day strategy that pairs perfectly with your reflex training. Want more swim training? Visit GoSwim.tv for our full video library — thousands of technique videos covering every stroke, every drill, every race scenario. The same coaches and resources that have trained Olympians for over two decades. Features: - Millisecond-accurate reaction time measurement - Local leaderboards — track your daily best and all-time records - Authentic false-start mechanics matching FINA competition rules - Daily featured training video from the GoSwim library - Share your reaction times with custom score cards - Clean, distraction-free interface designed for poolside use - Add more tries to keep pushing your personal best Perfect for: • Competitive swimmers (age-group through college and masters) • Swim coaches training reaction speed with their teams • Triathletes working on swim leg starts • Anyone who wants a fun, addictive reflex challenge What's coming: Cloud-based leaderboards, account sync across devices, push notifications for daily challenges, and more — all in development. Download GoSwim: Reflex and start training the part of your race that happens before the swimming even begins. Learn more about GoSwim's complete swim training education at GoSwim.tv ## Key features - Millisecond-accurate reaction time measurement - Authentic competitive starter sequence - False-start detection - Daily featured training video - Local leaderboards - Customizable score cards ## Frequently asked questions about GoSwim ### 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. ## Version history (last 1 release) ### 1.0 — 2026-05-13 No release notes. ## More apps by Go Swim Productions, LLC - [GoSwim: Learn Better Technique](https://appshunter.io/ios/app/goswim-learn-better-technique/id1482151723) All apps by Go Swim Productions, LLC: https://appshunter.io/developer/933313770 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-26.*