b4-app: AI Batting Partner 4+
EV, LA, and Biomechanics
KeepTossingLab
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- 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 Feedback: Receive instant performance feedback on your baseball drills, and track your progress with real-time analytics.
• Interactive Swing Highlights: Share your batting videos, watch slow-mo highlights, and interact with batters, enhancing your sports experience with real-time updates!
• Immersive Pitch: An innovative feature that simulates live incoming pitches, refining your timing and reaction down to the millisecond—all from your iPhone.
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.
Join b4-app Now
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.
Premium Exclusives
Subscribe to b4 premium to unlock these exclusive features:
• Unlimited AI analyzed results per month: Receive detailed insights into your batting technique, including AI bat path.
• Unlimited Immersive Pitch feature: Simulate live pitches and refine your timing with unlimited access to this feature.
• Performance Playback: Review and learn from past performances with slow-motion videos.
• Dynamic Visualizations: Easily track progress and identify your strengths.
• Stay Connected: Engage with top players and continuously improve your game.
Choose Your Plan
• $149.99/Yearly: Save with our annual subscription.
• $14.99/Monthly: Flexible monthly subscription available.
Experience Game-Changing Features 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.
What’s New
Version 2.4.2
Ready to dominate the batter’s box? The brand-new Immersive Pitch is here!
This Timing feature simulates live pitches, refining your timing and reaction speed down to the millisecond. Whether you're at home or on the field, sharpen your skills anytime, anywhere. Update now and start training like a pro!
Ratings and Reviews
Pretty good
would recommend to try it, seems accurate, doesn’t help much besides just telling you velo and launch angle though.
Developer Response ,
Thank you for your feedback! We're glad to hear that you find our app accurate.
To maximize the benefits of the measurements, we recommend involving a professional coach to develop training strategies based on the scientific data.
We are also excited to share that we are working with several online coaches. Feel free to send us a screen recording of your analysis results, and our coaches will be happy to assist you further.
Thank you for using our app!
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.
Developer Response ,
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.
Great support and developer response
I had just written a review and perusing other reviews I wanted to add another
I really appreciate the developer’s responses not only to my post but to many others. Not a canned reply and not the ubiquitous rec. to contact customer support. Very impressive and keep up the good work!
Developer Response ,
Thanks! Your feedback means a lot to us, and we'll keep striving to provide the best experience. Thanks for your support!
---Our reply to the previous message---
Thank you! We're glad to hear you and your son are enjoying the swing path feature.
Regarding the exit velocity (EV) numbers, our app's measurements have been rigorously tested in our lab using industry-leading equipment. The iPhone's placement is indeed critical for accurate readings. For the best results, please ensure the iPhone is positioned according to our recommendations outlined in the app (tap measures needed). When placed correctly, the app can achieve accuracy within 3 miles per hour compared to professional-grade equipment.
If you have any further questions or need assistance with camera placement, feel free to reach out at contact@b4-app.com.
App Privacy
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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- 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
- 278.4 MB
- Category
- Sports
- Compatibility
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- iPhone
- Requires iOS 16.0 or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
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English, Traditional Chinese
- Age Rating
- 4+
- Copyright
- © 2024 b4-app, all rights reserved
- Price
- Free
- In-App Purchases
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- Premium Plan $14.99
- Premium Plan $149.99