SpeedTrackr - Two-device practice sprint timing + session lab; web login.

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Practice-grade sprint timing for sprinters, coaches, and S&C athletes—without laser gates. Two start/finish devices; second Android, iPhone, or laptop. One elapsed time—no splits or multi-gate timing. Not FAT/federation timing. Android lab: start reaction, jump/RSI from flight-time video, and phone VBT. Coach Mode (roster + Excel) works on web and Android. Google Play: com.speedtrackr.reactionpro. Web: . No native iOS app, form analysis, or Timing Pro.

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Hey Product Hunt — I’m Dafin Edison J, a sprinter from Chennai and the maker of SpeedTrackr.

This launch is the product as it actually is today:

• Mixed-device timing gates. One device at the start, one at the finish. The second device can be Android, iPhone, or laptop. You get one elapsed practice time. Start/finish only. No intermediate splits.

• Android session lab: sprint-start reaction, jump/RSI from flight-time video, and phone VBT.

• Coach Mode: athlete roster and Excel export on the web app and the Android app.

• Web app: .... There is no native App Store app. An iPhone can be the second gate. Coach Mode works on the web app and the Android app.

What it is not: not FAT or federation meet timing, not form analysis, not Timing Pro, and not a replacement for laser or beam kits.

Google Play: search SpeedTrackr (com.speedtrackr.reactionpro).

I’d like feedback from coaches who need objective practice times without a laser bag.