# Spark Member vs Diamond Development Baseball

The clearest difference is rating: Diamond Development Baseball at 5.0 against Spark Member's 3.7. Spark Member's advantage is ads (none vs shown) and ratings volume (353 vs 2). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Diamond Development Baseball holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Spark Member has 353 ratings behind it against 2, so its average is the more settled of the two.

Spark Member ships an update every 3 weeks, Diamond Development Baseball every 5 weeks. The most recent releases landed on September 23, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Spark Member | Diamond Development Baseball |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (353 ratings)](https://appshunter.io/ios/app/spark-member/id1453013929/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/diamond-development-baseball/id1539486824/reviews)** |
| Number of ratings | **353** | 2 |
| Positive reviews | 17.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 52 MB | 127 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Spark Membership LLC](https://appshunter.io/developer/1448107941) | [Perfect Game LLC](https://appshunter.io/developer/1539486826) |

## What reviewers say

### Spark Member

[App page](https://appshunter.io/ios/app/spark-member/id1453013929)

Access award-winning martial arts programs, register for events, and stay updated with school news. Manage your enrollment, track progress, and connect with instructors.

**Highlights:** Event registration, Program enrollment, School updates, Messaging, Curriculum videos, Progress tracking, Class scheduling

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great performance
- 👍 User-friendly app
- 💡 Helpful for martial arts training
- 🔒 Secure login process

**What reviewers complain about**

- 🐛 Frequent bugs and glitches
- 🤖 Poor customer support
- 📆 Lack of calendar integration
- 🔍 Confusing user interface

**Reported bugs**

- Unable to check in to classes
- App crashes after updates
- Login issues and password reset problems
- Inconsistent data and missing information

**Requested features**

- Add recurring booking feature
- Integrate with Google/Apple Calendar
- Improve check-in process
- Provide more customization options


### Diamond Development Baseball

[App page](https://appshunter.io/ios/app/diamond-development-baseball/id1539486824)

Easily plan and schedule your classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location information. Optimize your time and enjoy the convenience of managing your activities on the go.

**Highlights:** View class schedules, Sign up for classes, Access studio location, Schedule management, Mobile convenience

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Spark Member free?

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

### Is Diamond Development Baseball free?

Diamond Development Baseball is free to download, with no in-app purchases.

### Which has better reviews, Spark Member or Diamond Development Baseball?

Diamond Development Baseball is rated higher. Spark Member averages 3.7 out of 5 from 353 ratings, while Diamond Development Baseball averages 5.0 from 2 ratings.

### Do Spark Member or Diamond Development Baseball have ads?

Diamond Development Baseball shows ads; Spark Member does not.

### Which is updated more often, Spark Member or Diamond Development Baseball?

Spark Member ships an update every 3 weeks, and Diamond Development Baseball every 5 weeks. Most recently, Spark Member was updated on September 23, 2026 and Diamond Development Baseball on June 1, 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.*