# YLMSportScience vs Grayslake Dance Connection

The clearest difference is in-app purchases: Grayslake Dance Connection at none against YLMSportScience's 5. Grayslake Dance Connection also leads on rating (4.8 vs 4.5). YLMSportScience's advantage is ratings volume (19 vs 6) and iOS requirement (12.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. YLMSportScience sells 5 in-app purchases, starting at $1.99 per month. Grayslake Dance Connection asks for nothing beyond the download.

Grayslake Dance Connection holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 19 and 6 respectively.

YLMSportScience ships an update every 5 months, Grayslake Dance Connection every 9 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | YLMSportScience | Grayslake Dance Connection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (19 ratings)](https://appshunter.io/ios/app/ylmsportscience/id1409592220/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/grayslake-dance-connection/id6446854692/reviews)** |
| Number of ratings | **19** | 6 |
| Positive reviews | 70.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 9 months |
| Monetization | Subscription | **Free** |
| Size | 40 MB | 70 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YLMSportScience](https://appshunter.io/developer/1409592219) | [Grayslake Dance Connection](https://appshunter.io/developer/1679389903) |

## What reviewers say

### YLMSportScience

[App page](https://appshunter.io/ios/app/ylmsportscience/id1409592220)

Access the latest sport science research summarized in easy-to-understand infographics. Improve your performance and coaching strategies with weekly updates in multiple languages. Explore categorized content and find original research links.

**Highlights:** Weekly infographics on sport science research, Summaries of latest scientific journal articles, Multilingual content (English, French, Spanish, Portuguese), Direct links to original research articles, Categorized content (Training, Nutrition, Recovery, etc.), Search engine for specific topics

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| YLMSportSci 1 month | $1.99 | per month |
| YLMSportScience 3 months | $7.49 | per 3 months |
| YLMSportScience 6 months | $10.49 | per 6 months |
| YLMSportScience 12 months | $20.49 | per year |
| YLMSportScience 12 months | $24.99 | per year |


### Grayslake Dance Connection

[App page](https://appshunter.io/ios/app/grayslake-dance-connection/id6446854692)

Manage your dance studio account, register for classes and events, and stay updated with important notifications. Access your client portal easily from your smartphone.

**Highlights:** Account management, Class registration, Event registration, Client portal access, Notifications for updates

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

**In-app purchases:** none


## Frequently asked questions

### Is YLMSportScience free?

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

### Is Grayslake Dance Connection free?

Grayslake Dance Connection is free to download, with no in-app purchases.

### Which has better reviews, YLMSportScience or Grayslake Dance Connection?

Grayslake Dance Connection is rated higher. YLMSportScience averages 4.5 out of 5 from 19 ratings, while Grayslake Dance Connection averages 4.8 from 6 ratings.

### Do YLMSportScience or Grayslake Dance Connection have ads?

Neither YLMSportScience nor Grayslake Dance Connection shows ads.

### Which is updated more often, YLMSportScience or Grayslake Dance Connection?

YLMSportScience ships an update every 5 months, and Grayslake Dance Connection every 9 months. Most recently, YLMSportScience was updated on October 29, 2026 and Grayslake Dance Connection on October 25, 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.*