# Monitoreo EM vs Sona Studio

The clearest difference is update cadence: Monitoreo EM at every 2 months against Sona Studio's every 18 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Monitoreo EM ships an update every 2 months, Sona Studio every 18 months. The most recent releases landed on September 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Monitoreo EM | Sona Studio |
| --- | --- | --- |
| 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 2 months** | Every 18 months |
| Monetization | — | Free |
| Size | 4 MB | 61 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Especialistas En Medios](https://appshunter.io/developer/1353561438) | [Karen Olivarria](https://appshunter.io/developer/1582304605) |

## What reviewers say

### Monitoreo EM

[App page](https://appshunter.io/ios/app/monitoreo-em/id1360419279)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Monitoreo EM free?

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

### Is Sona Studio free?

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

### Do Monitoreo EM or Sona Studio have ads?

Neither Monitoreo EM nor Sona Studio shows ads.

### Which is updated more often, Monitoreo EM or Sona Studio?

Monitoreo EM ships an update every 2 months, and Sona Studio every 18 months. Most recently, Monitoreo EM was updated on September 11, 2026 and Sona Studio on October 1, 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.*