Explosive Sprint Timer — Free Trial

Know your
real sprint time.

Frame-accurate timing from your phone — up to 37× more precise than a stopwatch. Try free for 3 days, no commitment, cancel anytime.

When you don’t know your real time, you don’t know if your training is working. That’s not a data problem — it’s a motivation problem.

Get your free trial code

Your code arrives instantly by email.

3 days free — you won't be charged until the trial ends. Cancel anytime under Settings → Manage Subscription.

If your first test doesn’t give you a more precise time than what you’ve had before, email us and we’ll refund your first payment. No questions.

or download directly
Download on the App Store Get it on Google Play
Ranked Against 50,000+ Benchmark Results
Ranked against 50,000+ results
8ms accuracy — same as laser gates
NFL Combine calibrated
iPhone & Android

The problem with stopwatches

That time your coach called out? It's a guess.

Human reaction time introduces ±0.15–0.30 seconds of error into every hand-timed result. On a 10-meter sprint that takes around 1.7 seconds, that's a margin of error above 10%.

Professional laser gate systems solve this — but they cost $1,000–$5,000, take 20 minutes to set up, and require a trained operator. The 120fps camera already in your phone captures the same 8ms resolution. It just needed the right software.

±0.15–0.30s
Typical hand-timing error per split
8ms
Explosive Sprint Timer resolution
19–37×
More precise than a stopwatch
Stopwatch error vs frame-accurate timing

From the founder

"

I built this because I couldn't find a tool that gave my sons a real number. After years of stopwatches and guesswork, I wanted precision that didn't cost $2,000 in hardware. Explosive Sprint Timer is as close as you can get to laser-gate accuracy — from the phone you already have.

Jens Ellingsson
Certified Speed & Agility Coach, NSPA · Founder, Explosive

How it works

Three steps to your real time

No equipment. No expensive hardware. Just your phone.

Record your sprint
Step 01

Film your sprint

Your phone's camera. Any surface, any location. Solo or with a training partner.

Select exact frames
Step 02

Select exact frames

Mark the precise start and finish — frame by frame. No guesswork, no reaction delay.

See your real time
Step 03

Get your real time

Precise time, Explosive Score, and your percentile rank vs athletes your exact age and gender.

Built for your sport

Any surface. Any sport. Any level.

From grass to track, solo sessions to combine prep — precise sprint timing wherever you train.

Athlete sprinting
Athlete training
Athlete testing
Athlete measuring
Explosive Score
74
Faster than 74% of male athletes
aged 17 in our database
0100
Acceleration
81
Speed
68
Max Velocity
72
Agility
63
Know your real rank

Your time.
In context.

A raw time means nothing without context. A 1.65 on the 10-yard means something very different at 14 versus 19. Male versus female.

Your Explosive Score gives you a percentile — 1 to 100 — benchmarked against athletes your exact age and gender, calibrated against NFL Combine data.

A score of 74 means you're faster than 74% of athletes your age and gender. That's the kind of number you can train with.

What you can measure

Four tests. One complete picture.

Each test isolates a different quality. Together they show where you're strong — and where there's ground to gain.

10m

Acceleration

Explosive first step. The clearest signal of power from a standing start.

40m

Speed

Full sprint velocity. The standard combine distance — your number against everyone else's.

Vmax

Max Velocity

Your true top speed, measured from a flying start so acceleration doesn't cap it.

5-10-5

Agility

Braking, pivoting, re-accelerating. Fast in a game, not just a straight line.

What athletes say

Real results. Real athletes.

"I finally got a real number on my 40. Been doing combine prep for months with no idea how I was actually improving — my coach was timing with a phone stopwatch. First test in Explosive: 4.67. That's a number I can actually train with."

Marcus T.
Wide Receiver, 19 · USA

"I stopped guessing whether a session had worked. Six weeks of block starts, tested the same way every Friday — 1.68 down to 1.62. Slow progress, but it was real, and I could see it. That’s what kept me doing the boring reps."

Leila K.
Sprinter, 21 · UK

"As an S&C coach I use this with every athlete I work with. The fact that it runs on Android is huge — most of my clients don't have iPhones. No other app like this exists on Google Play."

Ryan S.
S&C Coach · Australia

Pricing

Start free. Stay only if it's worth it.

3 days full access. No commitment — cancel anytime.

Weekly
$3.99
per week
Most Popular
Annual
$49.99
per year · $4.17/mo
Save 54% vs monthly
Monthly
$8.99
per month

Prices in USD. Billed through App Store or Google Play. Cancel anytime.

3 days free · Full access · Cancel anytime

Start your free
trial today.

Get your code by email. Download the app. Run your first test.

3 days free — you won't be charged until the trial ends. Cancel anytime under Settings → Manage Subscription.

If your first test doesn’t give you a more precise time than what you’ve had before, email us and we’ll refund your first payment. No questions.