# b4 vs Trace Baseball

The clearest difference is rating: Trace Baseball at 5.0 against b4's 4.2. Trace Baseball also leads on device support (3 vs 1). b4's advantage is monetization model (freemium vs subscription) and ratings volume (152 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. b4 sells 4 in-app purchases, starting at $3.99 per month and Trace Baseball sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Trace Baseball 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 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | b4 | Trace Baseball |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (152 ratings)](https://appshunter.io/ios/app/b4-app-ai-batting-partner/id1612791859/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trace-baseball/id1636026663/reviews)** |
| Number of ratings | **152** | 2 |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Freemium** | Subscription |
| Size | 222 MB | 81 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KeepTossingLab](https://appshunter.io/developer/1538261019) | [AlpineReplay, Inc.](https://appshunter.io/developer/457396501) |

## 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


### Trace Baseball

[App page](https://appshunter.io/ios/app/trace-baseball/id1636026663)

Automatically edit and share baseball and softball game highlights with AI. Capture full games or batting practice from multiple angles in real-time. Perfect for players, coaches, and teams looking to showcase their best moments.

**Highlights:** AI-powered automatic highlight editing, Real-time highlight generation, Multi-angle recording support, Easy social media sharing, Unlimited teams and sharing, 7-day free trial

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trace Baseball+ | $6.99 | per month |
| Full access to app features | $6.99 | per month |


## Frequently asked questions

### Is b4 free?

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

### Is Trace Baseball free?

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

### Which has better reviews, b4 or Trace Baseball?

Trace Baseball is rated higher. b4 averages 4.2 out of 5 from 152 ratings, while Trace Baseball averages 5.0 from 2 ratings.

### Do b4 or Trace Baseball have ads?

Neither b4 nor Trace Baseball shows ads.

### Which is updated more often, b4 or Trace Baseball?

b4 ships an update every 3 weeks, and Trace Baseball every 3 weeks. Most recently, b4 was updated on November 3, 2026 and Trace Baseball on November 3, 2026.

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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.*