# X vs Tandem Pilates

X and Tandem Pilates both sit at 5.0 stars, but that hides the real split: 100% of Tandem Pilates's written reviews are positive against 75% of X's. Tandem Pilates also leads on monetization model (free vs ad-supported). X's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (445 vs 11). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for X against 5.0 for Tandem Pilates. That said, the two scores are not equally well evidenced: X has 445 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 75% of X's written reviews are positive against 100% of Tandem Pilates's.

X ships an update every 3 weeks, Tandem Pilates every 4 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | X | Tandem Pilates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (445 ratings)](https://appshunter.io/ios/app/x-core/id1510988573/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/tandem-pilates/id6758223584/reviews)** |
| Number of ratings | **445** | 11 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Ad-supported | **Free** |
| Size | 38 MB | 55 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [X-Core, LLC](https://appshunter.io/developer/1479474176) | [Momence, Inc.](https://appshunter.io/developer/1577856011) |

## What reviewers say

### 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


### Tandem Pilates

[App page](https://appshunter.io/ios/app/tandem-pilates/id6758223584)

Manage your account, book classes, and stay connected with your studio. Easily message instructors, view announcements, and access shared content. This app simplifies your studio experience.

**Highlights:** Account management, Class and event booking, Direct messaging, Studio announcements, Content feed

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

**In-app purchases:** none


## Frequently asked questions

### Is X free?

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

### Is Tandem Pilates free?

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

### Which has better reviews, X or Tandem Pilates?

Tandem Pilates is rated higher. X averages 5.0 out of 5 from 445 ratings, while Tandem Pilates averages 5.0 from 11 ratings.

### Do X or Tandem Pilates have ads?

Neither X nor Tandem Pilates shows ads.

### Which is updated more often, X or Tandem Pilates?

X ships an update every 3 weeks, and Tandem Pilates every 4 months. Most recently, X was updated on October 24, 2026 and Tandem Pilates on October 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*