# CORE40 vs X

The clearest difference is rating: X at 5.0 against CORE40's 2.3. X also leads on ratings volume (426 vs 9) and review sentiment (75% vs 60%). On price, update cadence, ads and in-app purchases there is nothing between them.

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

X holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: X has 426 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 60% of CORE40's written reviews are positive against 75% of X's.

CORE40 ships an update every 6 weeks, X every 3 weeks. The most recent releases landed on September 11, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | CORE40 | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (9 ratings)](https://appshunter.io/ios/app/core40/id718323094/reviews) | **[5.0 (426 ratings)](https://appshunter.io/ios/app/x-core/id1510988573/reviews)** |
| Number of ratings | 9 | **426** |
| Positive reviews | 60.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 194 MB | 38 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CORE40 Studios](https://appshunter.io/developer/1750848800) | [X-Core, LLC](https://appshunter.io/developer/1479474176) |

## What reviewers say

### CORE40

[App page](https://appshunter.io/ios/app/core40/id718323094)

Plan and schedule fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location information. Easily connect to social media pages.

**Highlights:** View class schedules, Sign up for classes, Studio location information, Social media links, Optimize class booking

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

**In-app purchases:** none


### X

[App page](https://appshunter.io/ios/app/x-core/id1510988573)

Book fitness classes, manage waitlists, and purchase class packages. Experience high-intensity, low-impact cardio and strength training designed to burn fat and build muscle efficiently.

**Highlights:** Book classes, View waitlist status, Purchase class packages, Pre-buy goodies, High-intensity cardio, Low-impact strength training

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

**In-app purchases:** none


## Frequently asked questions

### Is CORE40 free?

CORE40 is free to download, with no in-app purchases.

### Is X free?

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

### Which has better reviews, CORE40 or X?

X is rated higher. CORE40 averages 2.3 out of 5 from 9 ratings, while X averages 5.0 from 426 ratings.

### Do CORE40 or X have ads?

Neither CORE40 nor X shows ads.

### Which is updated more often, CORE40 or X?

CORE40 ships an update every 6 weeks, and X every 3 weeks. Most recently, CORE40 was updated on September 11, 2026 and X on September 23, 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.*