# b4 vs X Factor Tech

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.

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.

## The numbers

| Metric | b4 | X Factor Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (151 ratings)](https://appshunter.io/ios/app/b4-app-ai-batting-partner/id1612791859/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/x-factor-tech/id6743642568/reviews)** |
| Number of ratings | **151** | 1 |
| Positive reviews | 80.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Freemium | **Free** |
| Size | 222 MB | 25 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KeepTossingLab](https://appshunter.io/developer/1538261019) | [X Factor Technology, LLC](https://appshunter.io/developer/1803742191) |

## What reviewers say

### b4

[App page](https://appshunter.io/ios/app/b4-app-ai-batting-partner/id1612791859)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Plan | $3.99 | per month |
| Premium Plan | $14.99 | per month |
| Essential Plan | $39.99 | per year |
| Premium Plan | $149.99 | per year |

**What reviewers like**

- ✅ Accurate exit velocity readings matching professional equipment
- 📊 Real-time swing analysis and biomechanics feedback
- 🎯 Launch angle tracking is precise and reliable
- 👨‍👧‍👦 Suitable for all ages and skill levels
- 🏋️ Effective tool for identifying and fixing swing weaknesses

**What reviewers complain about**

- 🐛 Inconsistent exit velocity readings (off by ±15%)
- 🐛 Intermittent detection failures after initial readings
- ❌ Login and authentication issues preventing app access
- ⚠️ Temperature sensitivity affecting accuracy above 80°F
- 🔧 Unreliable setup requiring multiple attempts

**Reported bugs**

- 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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/x-factor-tech/id6743642568)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is b4 free?

b4 is free to download, with in-app purchases available.

### Is X Factor Tech free?

X Factor Tech is free to download, with no in-app purchases.

### Which has better reviews, b4 or X Factor Tech?

X Factor Tech is rated higher. b4 averages 4.2 out of 5 from 151 ratings, while X Factor Tech averages 5.0 from 1 ratings.

### Do b4 or X Factor Tech have ads?

Neither b4 nor X Factor Tech shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*