# b4 vs Launch Quickness

b4 and Launch Quickness both sit at 4.2 stars, but that hides the real split: 81% of b4's written reviews are positive against 58% of Launch Quickness's. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. b4 sells 4 in-app purchases, starting at $3.99 per month and Launch Quickness sells 4 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.2 for b4 against 4.2 for Launch Quickness. Both are backed by a comparable volume of ratings — 151 and 128 respectively. Written reviews are what separate them: 81% of b4's written reviews are positive against 58% of Launch Quickness's.

b4 ships an update every 3 weeks, Launch Quickness monthly. The most recent releases landed on September 24, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | b4 | Launch Quickness |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (151 ratings)](https://appshunter.io/ios/app/b4-app-ai-batting-partner/id1612791859/reviews) | [4.2 (128 ratings)](https://appshunter.io/ios/app/launch-quickness/id6477305821/reviews) |
| Number of ratings | **151** | 128 |
| Positive reviews | **80.6% of reviews** | 57.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 311 MB | 48 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [KeepTossingLab](https://appshunter.io/developer/1538261019) | [Teacherman Hitting, LLC](https://appshunter.io/developer/1728924004) |

## 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


### Launch Quickness

[App page](https://appshunter.io/ios/app/launch-quickness/id6477305821)

Improve your baseball or softball swing timing and reaction time with this app. Track your progress, analyze your performance, and access training videos to enhance batting speed and accuracy. Works with the Propeller Bat for detailed feedback.

**Highlights:** Track swing reaction time, Chart training progress, Analyze batting speed and accuracy, Exclusive training videos, Works with Propeller Bat, Provides performance feedback

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Player: Monthly Subscription | $12.99 | per month |
| Family: Monthly Subscription | $36.99 | per month |
| Player: Yearly Subscription | $129.99 | per year |
| Family: Yearly Subscription | $369.99 | per year |


## Frequently asked questions

### Is b4 free?

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

### Is Launch Quickness free?

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

### Which has better reviews, b4 or Launch Quickness?

b4 and Launch Quickness are both rated 4.2 out of 5 on the App Store, from 151 and 128 ratings respectively.

### Do b4 or Launch Quickness have ads?

Neither b4 nor Launch Quickness shows ads.

### Which is updated more often, b4 or Launch Quickness?

b4 ships an update every 3 weeks, and Launch Quickness monthly. Most recently, b4 was updated on September 24, 2026 and Launch Quickness on August 25, 2026.

---

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