# Sona Studio vs Gruta 19

Sona Studio and Gruta 19 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.

Sona Studio ships an update every 18 months, Gruta 19 every 15 months. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Sona Studio | Gruta 19 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sona-studio/id6477849729/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 15 months** |
| Monetization | Free | — |
| Size | 61 MB | 50 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Karen Olivarria](https://appshunter.io/developer/1582304605) | [Emilio Serna](https://appshunter.io/developer/1587429433) |

## What reviewers say

### Sona Studio

[App page](https://appshunter.io/ios/app/sona-studio/id6477849729)

Easily book and manage your Pilates Reformer classes. Browse schedules, select your preferred instructor, and reserve your spot with an intuitive interface. Streamline your booking experience to maximize your Pilates sessions.

**Highlights:** Class scheduling, Instructor selection, Spot reservation, Intuitive interface, Class management

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Gruta 19

[App page](https://appshunter.io/ios/app/gruta-19/id6744265134)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sona Studio free?

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

### Is Gruta 19 free?

Gruta 19 is free to download, with no in-app purchases.

### Do Sona Studio or Gruta 19 have ads?

Neither Sona Studio nor Gruta 19 shows ads.

### Which is updated more often, Sona Studio or Gruta 19?

Sona Studio ships an update every 18 months, and Gruta 19 every 15 months. Most recently, Sona Studio was updated on October 1, 2026 and Gruta 19 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.*