SpeedTrackr is an Android sports-performance app for athletes and coaches: dual-phone sprint timing, AI form analysis, jump/RSI, reaction starts, video-based VBT - plus athlete roster management and Excel export in the same app. Free to start.
Timing, technique, power, reaction, bar velocity, plus coach roster and Excel export — on the Android phones you already carry.
Two Android phones become synchronized start and finish gates. Automated start/finish timing and reaction off the start cue.
AI biomechanics and jump metrics from a single phone clip.
Upload a sprint video and get frame-by-frame AI biomechanics — joint angles, stride cues, and technique scores.
Vertical jump height and RSI from flight time. Import a clip, get your numbers — no jump mat required.
Train and measure your sprint-start reaction time with drills and trend tracking — free to try in the browser.
Record a set, trim it, tap the plate — get mean concentric velocity, peak velocity, and velocity loss for every rep, plus a bar-path overlay video you can share. All processing happens on-device; your video never leaves the phone.
Independent research (Renner et al. 2024, PLOS ONE) found video-import bar tracking the most accurate smartphone approach to VBT. That's the category this tool belongs to — the study didn't test SpeedTrackr.
Manage an athlete roster and export session data to Excel — all inside the Android app. Lightweight coach support, not a full coach operating system.
By linking two Android phones, SpeedTrackr eliminates the human error of a human thumb on a stopwatch. Get automated start/finish timing, highly consistent reaction times, and objective timing data.
“Each session, carefully measured for real performance.”
Position one Android phone at the start line and one on a tripod at the finish. Pair them instantly with a simple 4-digit code.
The devices automatically synchronize their internal clocks over the air — dramatically more consistent than a hand-timed stopwatch.
Sprint through. The start device listens for your starting cue and the finish gate detects your crossing with computer vision, calculating your run time instantly.
Ditch the heavy tripods and expensive proprietary sensors. You likely already own the hardware you need.
Laser gates, jump mats, reaction lights, bar-speed transducers
Dual-phone software system (Android)
After 14 years of competitive sprinting in Chennai, the difference between a good day and a bad day came down to hundredths of a second — but real biomechanical feedback meant expensive labs and elite specialists I never had access to.
So I built SpeedTrackr: honest measurement from the processing power already in our pockets. Now I'm using it on myself, publicly — a 52-week program with every session logged and every time trial published.
Follow the live journey — every session logged, every number public.
26 ratings · 1K+ downloads
“As a sprinter and track & field athlete from Nepal, SpeedTrackr has been a great addition to my training. The app is simple to use, accurate, and helps me track my sprint sessions and monitor my progress. It's become part of my regular training routine. I also appreciate that the developer listens to athletes and is passionate about improving the app.”
“I love how realistic the block start reaction timer is. Stay still, or it's a false start. The 2-phone timing gate is a great feature. Overall, an excellent app.”
“I tested a couple of things, the app has huge potential, gg”Translated from original
“Cheap and practical, quite nice.”Translated from original
Sprinters and coaches use SpeedTrackr on the phones they already own. This map shows where the app is actually being opened.
Unique countries and territories represented in the analytics dataset.
Unique users who opened the SpeedTrackr app in the measurement window.
Continents with at least one country or territory in the dataset.
Based on SpeedTrackr product analytics and usage data covering July – September 2026. Figures count unique app users by country and are refreshed monthly, not in real time.
Last updated: September 2026
Practical guides to convert insights into results.
Everything you need to know about setting up and trusting the system.
Download SpeedTrackr for Android today and bring precision timing to your next speed session.
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