b4-app: AI Batting Partner 4+

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.