Track exit velocity, right from your phone.
Prop your iPhone to the side of the tee and SwingDino clocks how hard the ball comes off the bat, free. A coach character named Coach Rex reads each swing, logs the number, and charts the climb. No radar gun, no bat sensor, no cage.
How the read works
Set the phone to the side, hit off a tee, and you get the exit velo of that swing. Same setup every time, so today's number compares fairly to next month's.
Not one lonely radar reading. Each clean cut gets a number, so a handful of swings shows the real range, not a lucky peak.
The point is the climb. SwingDino charts exit velo over weeks so you can see a hitter get stronger, with proof instead of a hunch.
No $300 radar, no sensor strapped to a seven-year-old. The camera you already own does the measuring.
It tells you when it could not see
A camera is only as good as the clip. When the ball is too far away, the light is bad, or the angle is wrong, SwingDino says so, instead of inventing a number off a frame it could not read. That is the whole philosophy, and it is why we show fewer numbers on purpose. The full breakdown lives on our accuracy page.
Learn exit velocity
Average exit velocity by age
A by-age benchmark chart for youth baseball, and what counts as a good number.
Fastpitch exit velocity by age
The softball-specific chart, and why the numbers run lower than baseball.
How to measure it at home
The phone setup and the five framing habits that get you an honest number.
Drills that raise it
The tee work, strength, and on-time contact that move the number over weeks.
Exit velocity calculator
Turn an exit velo and launch angle into projected carry distance, free.
Exit velocity questions
What is exit velocity in baseball?
Exit velocity is how fast the ball leaves the bat at contact, measured in mph. It is the cleanest single measure of how hard a hitter actually hit the ball, which is why pro parks track it on every batted ball.
What is a good exit velocity for my kid's age?
Off a tee, rough ranges run from the mid 30s at ages 7-8 up to 75-95 mph in high school. They are ranges, not cutoffs, and every kid is different. Our by-age chart covers baseball and fastpitch in detail.
How do you measure exit velocity without a radar gun?
Prop an iPhone to the side of the tee and let the camera do it. SwingDino tracks the ball across the frame right after contact and reads its speed from the video, then deletes the video and keeps only the numbers.
How accurate is a phone exit velocity app?
For tee work in good light, our modeling puts the estimate within a few mph, and it is built to be repeatable so the trend is real. It is a trend tracker, not a radar gun, and when it cannot see the ball cleanly it says so instead of faking a number.
