# 4APP Sports vs Diamond Kinetics

The clearest difference is rating: 4APP Sports at 4.4 against Diamond Kinetics's 3.4. 4APP Sports also leads on review sentiment (65% vs 41%). Diamond Kinetics's advantage is monetization model (free with in-app purchases vs subscription). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 4APP Sports sells 14 in-app purchases, starting at $9.99 per month and Diamond Kinetics sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

4APP Sports holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 198 and 151 respectively. Written reviews point the same way: 65% of 4APP Sports's written reviews are positive against 41% of Diamond Kinetics's.

4APP Sports ships an update every 3 weeks, Diamond Kinetics every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 4APP Sports | Diamond Kinetics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (198 ratings)](https://appshunter.io/ios/app/4app-sports/id1551925155/reviews)** | [3.4 (151 ratings)](https://appshunter.io/ios/app/diamond-kinetics/id1604464179/reviews) |
| Number of ratings | **198** | 151 |
| Positive reviews | **65.4% of reviews** | 41.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 343 MB | 137 MB |
| Requires iOS | 17.1 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [4APP Sports LLC](https://appshunter.io/developer/1695216142) | [Diamond Kinetics, Inc.](https://appshunter.io/developer/937803817) |

## What reviewers say

### 4APP Sports

[App page](https://appshunter.io/ios/app/4app-sports/id1551925155)

Enhance your pitching performance with advanced training tools and analytics. Improve velocity, command, and health, and track your progress to stand out to scouts and recruiters. Tailored programs and expert analysis help pitchers of all levels reach their full potential.

**Highlights:** Custom remote training, Pitching mechanics video analysis, Daily throwing programs, Command tracking tools, Daily health tracking, Hitter attack plans, Pitching journals

**Features:** Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pitching Essentials | $9.99 | per month |
| Double-A Monthly | $99.00 | per month |
| Pitching Essentials Annual | $99.99 | per year |
| Pitching Essentials (1 Year) | $99.99 | per year |
| Ultimate Pitching Program | $199.99 | per month |
| Double-A 3 Months | $269.00 | per 3 months |
| Triple-A Monthly | $549.00 | per month |
| Double-A Annual | $900.00 | per year |
| Triple-A 3 Months | $1499.99 | per 3 months |
| Ultimate Pitching Program | $1799.99 | per year |
| Pro 3 Months | $2999.00 | per 3 months |
| Triple-A Annual | $5199.99 | per year |
| Pro 6 Months | $5399.99 | per 6 months |
| Mechanical Analysis | $199.99 | one-time |

**What reviewers like**

- 👍 Helps improve pitching performance
- 👍 Detailed training plans
- 👍 Great for arm care and strength
- 👍 Provides valuable insights
- 👍 Helps build arm strength

**What reviewers complain about**

- 💰 High monthly cost
- 💰 Too expensive for many
- 💰 Significant cost for premium features
- 🐛 Frequent communication errors when saving
- 🐛 App won't open

**Reported bugs**

- Communication error when saving records
- App won't open
- Cannot click on premium subscription
- Membership issues
- Age restriction prevents sign-up for minors

**Requested features**

- 日本語版も導入して欲しいです (Add Japanese version)
- 日本語バージョンができるようにして欲しいです (Request Japanese version)
- Add Japanese language support


### Diamond Kinetics

[App page](https://appshunter.io/ios/app/diamond-kinetics/id1604464179)

Improve your baseball or softball swing with this app. It offers virtual hitting experiences, swing analysis, and interactive MLB-themed games. Enhance your performance with real-time metrics and personalized feedback.

**Highlights:** Smart Motion Technology for virtual hitting, Diamond Decisions Highlight Arcade, MLB SwingMatch for mechanic comparison, MLB PLAY BALL Challenges & Lessons, Real-time swing metrics with bat sensor, Personalized Swing Score, Interactive hitting games

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DK+ Monthly | $5.99 | per month |
| Smart Bat Monthly | $5.99 | per month |
| DK+ Yearly | $59.99 | per year |
| Smart Bat Yearly | $59.99 | per year |

**What reviewers like**

- 🎮 Engaging games and challenges motivate practice
- ⚾ MLB player lessons and content appeal to kids
- 🏆 Leaderboards and prizes incentivize swings
- 📊 Swing metrics and feedback help improvement
- 👨‍👧‍👦 Gets kids excited to practice outside

**What reviewers complain about**

- 🐛 Frequent connectivity and pairing issues
- 🐛 App crashes and freezes regularly
- 📉 Removed advanced swing analysis features
- ❌ Lost 3D swing path visualization
- ⚠️ Inaccurate distance measurements

**Reported bugs**

- Sensor won't connect to app after firmware update
- Bluetooth pairing fails across multiple devices
- App crashes when selecting bat
- Activation code doesn't work
- Battery dies within 2 minutes

**Requested features**

- Restore 3D swing path visualization
- View individual session history and data
- Multiple metrics displayed simultaneously
- Swing-to-swing comparison and analysis
- Spreadsheet or graph of historical metrics


## Frequently asked questions

### Is 4APP Sports free?

4APP Sports is free to download, with in-app purchases available.

### Is Diamond Kinetics free?

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

### Which has better reviews, 4APP Sports or Diamond Kinetics?

4APP Sports is rated higher. 4APP Sports averages 4.4 out of 5 from 198 ratings, while Diamond Kinetics averages 3.4 from 151 ratings.

### Do 4APP Sports or Diamond Kinetics have ads?

Neither 4APP Sports nor Diamond Kinetics shows ads.

### Which is updated more often, 4APP Sports or Diamond Kinetics?

4APP Sports ships an update every 3 weeks, and Diamond Kinetics every 2 weeks. Most recently, 4APP Sports was updated on October 25, 2026 and Diamond Kinetics on October 24, 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.*