# CSX vs FBS Exercise

The clearest difference is in-app purchases: CSX at none against FBS Exercise's 4. FBS Exercise's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. FBS Exercise sells 4 in-app purchases, starting at $23.99 per month. CSX asks for nothing beyond the download.

CSX ships an update every 2 months, FBS Exercise every 3 weeks. Both last shipped on September 10, 2026.

## The numbers

| Metric | CSX | FBS Exercise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/fbs-exercise/id1584829276/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 64 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [HITIQ LIMITED](https://appshunter.io/developer/1436244946) | [Adaptivity B.V.](https://appshunter.io/developer/1323517652) |

## What reviewers say

### CSX

[App page](https://appshunter.io/ios/app/csx/id1460484546)

**In-app purchases:** none


### FBS Exercise

[App page](https://appshunter.io/ios/app/fbs-exercise/id1584829276)

Access a library of high-quality exercise videos rooted in the Frans Bosch Systems philosophy. This app serves as a practical resource for modern motor control and learning concepts, ideal for fitness and sports professionals.

**Highlights:** High-quality exercise videos, Frans Bosch Systems philosophy, Motor control and learning concepts, For fitness professionals, For sport professionals, Mobile and tablet compatible

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fitness Professional Maand | $23.99 | per month |
| Sport Professional Maand | $23.99 | per month |
| Fitness Professional Jaarlijks | $229.99 | per year |
| Sport Professional Jaar | $229.99 | per year |


## Frequently asked questions

### Is CSX free?

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

### Is FBS Exercise free?

FBS Exercise is free to download, with in-app purchases available.

### Do CSX or FBS Exercise have ads?

Neither CSX nor FBS Exercise shows ads.

### Which is updated more often, CSX or FBS Exercise?

CSX ships an update every 2 months, and FBS Exercise every 3 weeks. Most recently, CSX was updated on September 10, 2026 and FBS Exercise on September 10, 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.*