# x2oStudio vs RockSalt Pilates

x2oStudio and RockSalt Pilates are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | x2oStudio | RockSalt Pilates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (303 ratings)](https://appshunter.io/ios/app/x2ostudio/id1508596119/reviews)** | — |
| Number of ratings | **303** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 38 MB | 193 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [HartCore LLC](https://appshunter.io/developer/1508596118) | [RockSalt Pilates Franchise LLC](https://appshunter.io/developer/1879907886) |

## What reviewers say

### x2oStudio

[App page](https://appshunter.io/ios/app/x2ostudio/id1508596119)

Easily view class schedules, book your spot, and monitor your fitness journey. Stay organized and motivated with this comprehensive tool.

**Highlights:** View class schedules, Book classes, Track progress, Manage your fitness journey

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

**In-app purchases:** none


### RockSalt Pilates

[App page](https://appshunter.io/ios/app/rocksalt-pilates/id6808624441)

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

**In-app purchases:** none


## Frequently asked questions

### Is x2oStudio free?

x2oStudio is free to download, with no in-app purchases.

### Is RockSalt Pilates free?

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

### Do x2oStudio or RockSalt Pilates have ads?

Neither x2oStudio nor RockSalt Pilates shows ads.

### Which is updated more often, x2oStudio or RockSalt Pilates?

x2oStudio ships an update every 3 weeks, and RockSalt Pilates every 3 weeks. Most recently, x2oStudio was updated on November 3, 2026 and RockSalt Pilates on October 31, 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.*