b4 vs X Factor Tech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
b4
Enhance your baseball batting with advanced AI analysis. Track key metrics like exit velocity and launch angle, analyze biomechanics, and receive real-time feedback. Improve your swing and performance with detailed reports and video playback.
- Comprehensive swing analysis
- Exit velocity and launch angle tracking
- Bat contact point analysis
- Real-time playback and analytics
- Immersive pitch simulation
- AI-driven performance reports
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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. • Bat Contact Point (BCP): Precisely tracks where the bat hits the ball, giving players actionable insights on every swing. • 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 Contact Point Analysis: Your contact point range with minimum, maximum, and distribution to understand patterns and improve consistency session by session. • Bat Path Visualization: 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. Subscriptions Our app is free for everyone to use! Access lab-level swing analysis at no cost. The Starter plan lets you analyze up to 30 swings per month. Upgrade anytime for more power! Starter Pass (Free) • 30 swings per month • Perfect for casual swing analysis and quick check-ins Essential • 100 swings per month • More reps, deeper insights, and faster improvement Premium • Unlimited swings per month • Built for dedicated athletes committed to real progress Choose Your Plan Essential • $39.99 / Yearly — Save with our annual subscription • $3.99 / Monthly — Flexible monthly subscription Premium • $149.99 / Yearly — Save with our annual subscription • $14.99 / Monthly — Flexible monthly subscription Coach Access+ • Explore enhanced plans designed specifically 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.
X Factor Tech
This app offers advanced, portable versions of popular baseball hitting calculators. It provides precise tools for analyzing pitch travel time, barrel arrival, and flight distance, designed for hitters and coaches seeking data-driven insights.
- Pitch Speed Over Distance Calculator
- Ball Flight Distance Calculator
- Pitch Velocity to All 25 Calculator
- Swing Time to All 25 Calculator
- Tempo Trainer Timing Simulator Lite
- Streamlined and modernized tools
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The app features more advanced, portable versions of many popular calculators that have been available on this site over the years—now streamlined, modernized, and built to work seamlessly together. Each tool in the bundle isolates a core temporal element of hitting: from pitch travel time to barrel arrival timing to flight distance projection. The bundle is designed for hitters and coaches who want precision, not opinion. Included: • Pitch Speed Over Distance Calculator • Ball Flight Distance Calculator • Pitch Velocity to All 25 Calculator • Swing Time to All 25 Calculator • Tempo Trainer Timing Simulator Lite
Screenshots
Verdict
The clearest difference is rating: X Factor Tech at 5.0 against b4's 4.2. X Factor Tech also leads on in-app purchases (none vs 4) and review sentiment (100% vs 81%). b4's advantage is ratings volume (151 vs 1). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. b4 sells 4 in-app purchases, starting at $3.99 per month. X Factor Tech asks for nothing beyond the download.
X Factor Tech holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: b4 has 151 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 81% of b4's written reviews are positive against 100% of X Factor Tech's.
| Parameter | b4 | X Factor Tech |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (151 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 151 — better | 1 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 222 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | KeepTossingLab | X Factor Technology, LLC |
Customer experience
b4
X Factor Tech
Bugs and requests
b4
Reported bugs
7 issues- Exit velocity readings fail after first swing
- Login fails repeatedly even after reinstalling app
- App stops providing readings mid-session
- Inaccurate measurements in certain temperature conditions
- Setup configuration not recognized despite proper calibration
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- App crashes and becomes unresponsive
- Inconsistent accuracy across different users and conditions
Requested features
4 requests- Distance tracking in feet for hit balls
- More in-depth analytics and statistics
- Support for older iPhone models
- Enhanced data visualization and reporting
X Factor Tech
Not enough reviews yet to summarise bugs or requests.
In-app purchases
b4
- Essential Plan$3.991 Month
- Premium Plan$14.991 Month
- Essential Plan$39.991 Year
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- Premium Plan$149.991 Year
X Factor Tech
No in-app purchases









