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Android toolkit

Free athlete tools, now in the Android app

The old web free-tools hub is gone. Timing gates, jump/RSI, reaction, and video VBT now live in SpeedTrackr on Android — free to start. Built by sprinter Dafin Edison.

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What moved

The toolkit on your phone

Timing

Timing Gates

Two Android phones pair with a 4-digit code for practice start/finish timing and computer-vision finish detection. Training consistency — not official FAT or laser timing.

Timing gates CTA
Starts

Reaction

Train sprint-start reaction off a start cue. A web reaction trainer still lives at Reaction Pro; the full start-timing workflow is in the Android app.

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Plyometrics

Jump / RSI

Vertical jump height and reactive strength index from phone-video flight time. No dedicated jump mat required.

Jump analysis CTA
Strength

VBT

On-device video velocity-based training: mean and peak concentric velocity, velocity loss, and a shareable bar-path overlay. No linear transducer.

Phone VBT CTA
Coach support

Roster and Excel export, in the same app

Coaches can manage an athlete roster and export session data to Excel from Android. There is no separate web coach dashboard, and this is not a full coach OS with periodization or wellness modules.

Get the Android app

Frequently asked questions

What happened to the web calculators, and what you can download today.

Where did the web free tools go?
They moved into the SpeedTrackr Android app. This URL is still here so search traffic lands on a clear Play Store path instead of a dead calculator. Old subpaths such as the sprint calculator redirect here.
Is SpeedTrackr Android-only?
Yes. Timing gates, jump/RSI, reaction, VBT, coach roster, and Excel export all run in the Android app. An iOS version is not available.
Are the tools free?
SpeedTrackr is free to start. Premium unlocks extra timing sessions in the app. The free VBT tier includes one set per day. Current paid tiers are listed in Google Play and in-app — we do not invent prices here.
Is there an iOS app?
Not at this time. Dual-phone timing needs the Android connection protocol the team is focused on. Watch the website and the Play listing for any future platform updates.
Can I still use anything in the browser?
Reaction Pro remains a public web trainer. Timing gates, jump, and VBT are Android-app features with thin marketing pages — not restored web runtimes.
Is there a web coach dashboard?
No. Coaches manage an athlete roster and export data to Excel inside the Android app. That is lightweight coach support, not a periodization or wellness operating system.

Download the toolkit

Timing, jump, reaction, and VBT — free to start on Android.

Get the Android app