# ISRTRI vs Studio D Pilates

The clearest difference is iOS requirement: Studio D Pilates at 13.4 against ISRTRI's 18.6. On price 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.

## The numbers

| Metric | ISRTRI | Studio D Pilates |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Weekly | — |
| Size | 17 MB | 34 MB |
| Requires iOS | 18.6 | **13.4** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [ran kellner](https://appshunter.io/developer/1372973121) | [Arbox LTD](https://appshunter.io/developer/1021244486) |

## What reviewers say

### ISRTRI

[App page](https://appshunter.io/ios/app/isrtri/id1546991465)

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

**In-app purchases:** none


### Studio D Pilates

[App page](https://appshunter.io/ios/app/studio-d-pilates/id6605930111)

**In-app purchases:** none


## Frequently asked questions

### Is ISRTRI free?

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

### Is Studio D Pilates free?

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

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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.*