# b4 vs SubHook

The clearest difference is rating: SubHook at 5.0 against b4's 4.2. SubHook 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. SubHook asks for nothing beyond the download.

SubHook 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 SubHook's.

b4 ships an update every 3 weeks, SubHook every 9 days. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | b4 | SubHook |
| --- | --- | --- |
| 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/subhook/id6760349965/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 | **Every 9 days** |
| Monetization | Freemium | **Free** |
| Size | 222 MB | 68 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [KeepTossingLab](https://appshunter.io/developer/1538261019) | [VibeCMD](https://appshunter.io/developer/1879550677) |

## 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


### SubHook

[App page](https://appshunter.io/ios/app/subhook/id6760349965)

This app connects team managers needing last-minute substitute players with players looking for games to join. It streamlines the process of finding players for recreational softball and baseball games, managing rosters, and confirming attendance.

**Highlights:** Post game broadcasts for substitute players, Players broadcast availability, Search player directory by position and skill, Roster and waitlist management, Attendance confirmation, In-app messaging, Game calendar, Map and directions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is b4 free?

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

### Is SubHook free?

SubHook is free to download, with no in-app purchases.

### Which has better reviews, b4 or SubHook?

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

### Do b4 or SubHook have ads?

Neither b4 nor SubHook shows ads.

### Which is updated more often, b4 or SubHook?

b4 ships an update every 3 weeks, and SubHook every 9 days. Most recently, b4 was updated on October 25, 2026 and SubHook on October 9, 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.*