b4-app: AI Batting Partner 4+

Name: b4-app: AI Batting Partner
Rating: 4.3 (157 reviews)
Author: KeepTossingLab

EV, LA, and Biomechanics

KeepTossingLab

- 4.3 • 157 Ratings

- Free
- Offers In-App Purchases

iPhone Screenshots

Description

Introducing the first AI-based baseball batting app for instant advanced hitting data via iPhone. Supports iPhone 11 and later. Currently X, XR, and XS are not supported.

Revolutionize your baseball training experience. Enhance your batting skills, analyze your performance, and take your game to the next level. Get cutting-edge batting stats, biomechanics analysis, and real-time feedback—all with just an iPhone and a tripod!
Developed with multiple Major League players.

Key Features
• Comprehensive Metrics: Access a complete baseball swing analysis toolset, including exit velocity, launch angle, bat path, and biomechanics analysis, to refine your skills and elevate your game.
• Real-Time Playback: Review and learn from past performances with slow-motion videos, and track your progress with real-time analytics.
• Immersive Pitch: An innovative feature that simulates live incoming pitches, refining your timing and reaction down to the millisecond—all from your iPhone.
• Dynamic Visualizations: Easily track progress and identify your strengths.
• AI Report: Gain deeper insight into your hitting performance. Track SwSp%, xwOBA, exit velocity, launch angle, and more.

Batting Statistics Overview
• Bat Path Analysis: Gain in-depth insights into your bat control and make informed adjustments.
• Exit Velocity Tracking: Accurately measure the speed of your hits to monitor your progress and aim for new personal bests.
• Launch Angle Optimization: Perfect your launch angles for maximum performance and increase hitting probability.
• Comprehensive Biomechanics Analysis: Refine your technique by understanding your stride, weight shift, and head movement.
• Advanced AI Report: Track hit classifications, analyze SwSp%, xBA, xwOBA, ground-ball to fly-ball ratio, and more to pinpoint and boost your game performance.

Premium Exclusives
Subscribe to b4 premium to unlock these exclusive features:
• Unlimited personalized AI analyzed results per month: Receive detailed insights into your batting technique.
• Unlimited Timing the Pitch feature: Simulate live pitches and refine your timing with unlimited access to this feature, exclusively with the Premium plan.
• Unlimited AI Report: Unlock in-depth performance analysis after every session to track progress and fine-tune your swing.

Subscriptions
Our app is free for everyone to use! Access our essential features like swing analysis at no cost. Users can analyze up to 10 swings per day.

Choose Your Plan
• $149.99/Yearly: Save with our annual subscription.
• $14.99/Monthly: Flexible monthly subscription available.
• Coach Access+: Explore plans tailored for coaches at all levels.

Experience Future Tech Today! Dive into advanced batting metrics, enhance your sports performance in real-time, and start your science-backed journey to improvement with the b4-app – all at your fingertips.

Aug 8, 2025

Version 2.6.1

AI Report: Unlock advanced swing analysis with our brand-new AI-generated report. Get deeper insights into your batting sessions, such as SwSp%, xwOBA and more — all from your phone.

Coach Access+: Coaches, elevate your game with next-level insights! Track players, review swings, and give feedback with a streamlined coach portal.

4.3 out of 5

157 Ratings

Great tool for biomechanics!

I began to use this app for my son and for some players I regularly train in private lessons (8-10yrs). At their age they may understand the concepts of how their body should move for an efficient swing, but they also may not be able to feel or tell the difference when they hit the ball with a bad swing or a good swing. They may just think “I hit it hard” even though they casted their hands out and came around the ball for example. So this tool is great as it gives real time feedback and showcases the difference between a “bad habit” swing vs a good swing we are training on. As a coach, I recommend.

Great tool!

Trying out this app I saw Coach Murph used in one of his videos. This is an excellent tool for coaches and players for a great visual for swing analysis. I like to utilize video to break down a swing and this app takes it to the next level with the great features including exit velocity, launch angle, and bat path tracing. Love this. I only needed things I already had around the house. A phone and a tripod. Love b4!

Inaccurate Readings

I reached out via email to “b4” and didn’t receive a reply on how to resolve my issues. It has been over a week now with no response. I contacted them through their support link on the app.

I have tried baseballs and softballs. I have tried lower pitching and higher pitching. I have switched batters. I have double and triple checked the setup and measurements. Nothing I have tried has lead to accurate Exit Velocity (EV). We’re hitting balls over 300’ fences and the highest EV reading we get is less than 65.

I canceled the premium plan today. I’m seeing better readings on the reels than we get and I feel like I’ve put more effort into figuring this out than most would.

Hi JustGeaux,

Thank you for reaching out and sharing your feedback. We aim to respond to all inquiries within a couple of weeks, so please ensure your email address is correct. You’re also welcome to contact us directly at contact@b4-app.com or DM us on Instagram at b4.app for quicker assistance.

Regarding your concerns with Exit Velocity (EV) readings, we’d be happy to work with you to refine the setup and configurations to improve accuracy. Every field setting and variation can slightly impact readings, and we’re committed to helping you achieve the most accurate data possible. Please feel free to send us any videos, photos, or additional notes about your setup to help us troubleshoot specific details.

Thank you for your patience and for allowing us the opportunity to enhance your experience with b4-app. We look forward to getting you back on track.

The developer, KeepTossingLab, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

Contact Info
User Content
Identifiers
Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Information

Seller

Keep Tossing Lab Inc.

Size

317.5 MB