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Discover all your number with just your phone.

AI powered baseball batting app.

Get the latest updates now.

Your ubiquitous data analyst

Batting partner on the go

Access your sports data anytime anywhere

With simply your iPhone to instantly capture advanced data no matter where you are.

Developing Partner
Former MLB star,
H.C. KUO

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Proud Partner Of

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The b4-app’s technology opens the door to data that many coaches may not have previously had access to,”
 

- Craig Keilitz,

ABCA Executive Director

Exit velocity, launch angle, and key numbers

Capture astonishing moments of impact with industry-leading AI visual algorithms providing the most accurate key data and captivating visualization of advanced scientific data for training.

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Bat Path

Biomechanics

EV/LA

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Exit Velocity,EV

Launch Angle, LA

Exit Velocity refers to the speed when the ball leaves the barrel during batting. Generally, the higher the exit velocity is, the better.

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Biomechanics, Biomech.

Launch Angle refers to the angle between the trajectory of a batted ball and the horizon. Generally, there is an optimum range of launch angles which has a higher probability of being a hit. (about 15~35 degrees)

Normalized Movement refers to the relative positions of the player's biomechanical joints, including the trajectory of the head, the center of gravity, and the stride.

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Bat Path

Gain in-depth insights into your bat control and make informed adjustments.

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Enhance performance Scientifically

With simply an iPhone, b4-app helps improve your athletic performance, prevent injuries, and record your progress data, allowing you to achieve optimal performance, and surpass your limits.

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Carry a collection of all your swings with you

With just an iPhone and a tripod, you can obtain advanced swing data, including every perfect and imperfect swing, allowing you to review your progress at any time and enhance your athletic performance.

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Stay tuned to your favorite athletes at all times

Do you have any favorite athletes? Stay updated on their status and explore their sports data together.

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