b4 vs BatApp
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.
BatApp
This app uses your phone's camera and physics calculations to measure baseball and softball exit velocity and launch angle. Simply time the ball's flight and mark its landing spot to get instant hitting metrics without any extra equipment.
- Measure exit velocity
- Measure launch angle
- No radar gun needed
- Works for baseball and softball
- Accurate physics-based calculations
- Track player progress
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Measure Exit Velocity and Launch Angle for every hit - no radar gun, no extra equipment, just your phone. BatApp turns any baseball or softball field into a measurement lab. Time the ball's flight, mark where it landed and get accurate hitting metrics instantly. Perfect for players tracking their progress, coaches running drills and parents who want real data without spending hundreds on radar equipment. How it works Open the map, pin home plate and you're ready. When the bat hits the ball, press and hold the timer button. Release it the moment the ball lands or is caught. Tap the landing spot on the map. BatApp does the rest: Exit Velocity and Launch Angle, calculated from physics, not guesswork. Works for baseball and softball The aerodynamic model is calibrated for a standard baseball but works for softball too. Exit velocity error for softball is under 1 mph for a 12" softball and under 0.5 mph for an 11" ball. Accurate where it counts The data model is accurate within ±2 mph and ±2° more than 80% of the time. Some conditions like wind or ball spin can cause deviations. A 0.2 s timing error translates to roughly 3 mph and 3° of error, and a 10 ft landing-spot error translates to about 3 mph and 1° on a typical 200 ft hit. Pro tips The best way to reduce distance error is to watch from the outfield where you can estimate the landing spot most accurately. The best way to reduce timing error? Work on your reaction time.
Screenshots
Verdict
The clearest difference is price: b4 at Free against BatApp's $2.99. b4 also leads on update cadence (every 3 weeks vs every 8 months) and ratings volume (152 vs 1). BatApp's advantage is rating (5.0 vs 4.2) and in-app purchases (none vs 4). On 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
b4 is free to download; BatApp costs $2.99 up front. b4 sells 4 in-app purchases, starting at $3.99 per month. BatApp asks for nothing beyond the download.
BatApp holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: b4 has 152 ratings behind it against 1, so its average is the more settled of the two.
b4 ships an update every 3 weeks, BatApp every 8 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.
| Parameter | b4 | BatApp |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.2 (152 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.6% of reviews | — |
| Number of ratings | 152 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Best chart rank | — | #197 — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 222 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | KeepTossingLab | Juuso Mikkonen |
Customer experience
b4
BatApp
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
BatApp
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
BatApp
No in-app purchases









