CORE40 vs X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CORE40
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.
- View class schedules
- Sign up for classes
- Studio location information
- Social media links
- Optimize class booking
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Download the CORE40 App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. You can also click through to our Facebook and Twitter pages! Optimize your time and maximize the convenience of signing up for classes from your mobile! Download this App today! Also be sure to check out our website at: www.core40.com
X
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.
- Book classes
- View waitlist status
- Purchase class packages
- Pre-buy goodies
- High-intensity cardio
- Low-impact strength training
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Your new best friend to book classes, see waitlist status, buy packages, pre-buy goodies, and more! The Bay Area's most efficient CARDIO & STRENGTH classes to burn fat, kick-start metabolism, and build strength. Classes are intense on the muscles, and zero to low impact on your body. It's the perfect balance. 30 min in our beat-based xCLIMB class will make you sweat and leave you shredded. 40 min in xBURN, our award winning high intensity pilates class, will strengthen, lengthen and tone your muscles.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | CORE40 | X |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (9 ratings) | 5.0 (426 ratings) — better |
| Positive reviews | 60.0% of reviews | 75.0% of reviews — better |
| Number of ratings | 9 | 426 — better |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 194 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | CORE40 Studios | X-Core, LLC |
Customer experience
CORE40
X
In-app purchases
CORE40
No in-app purchases
X
No in-app purchases
