# Flow Pilates USA vs CTRL.Room SI

Flow Pilates USA and CTRL.Room SI 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.

Flow Pilates USA ships an update every 2 months, CTRL.Room SI every 3 months. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Flow Pilates USA | CTRL.Room SI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 86 MB | 121 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Spotbee, Inc.](https://appshunter.io/developer/1465231993) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## What reviewers say

### Flow Pilates USA

[App page](https://appshunter.io/ios/app/flow-pilates-usa/id6741025229)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### CTRL.Room SI

[App page](https://appshunter.io/ios/app/ctrlroom-si/id6778946108)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flow Pilates USA free?

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

### Is CTRL.Room SI free?

CTRL.Room SI is free to download, with no in-app purchases.

### Do Flow Pilates USA or CTRL.Room SI have ads?

Neither Flow Pilates USA nor CTRL.Room SI shows ads.

### Which is updated more often, Flow Pilates USA or CTRL.Room SI?

Flow Pilates USA ships an update every 2 months, and CTRL.Room SI every 3 months. Most recently, Flow Pilates USA was updated on September 20, 2026 and CTRL.Room SI on September 24, 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.*