# master studio vs Соня

The clearest difference is iOS requirement: master studio at 14.0 against Соня's 16.0. 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 | master studio | Соня |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6789162985/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 33 MB | 13 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 12+ |
| Developer | [ORG DIKIDI](https://appshunter.io/developer/1057010744) | [I B Marketing LTDA](https://appshunter.io/developer/6784353392) |

## What reviewers say

### master studio

[App page](https://appshunter.io/ios/app/master-studio/id6462655147)

**In-app purchases:** none


### Соня

[App page](https://appshunter.io/ios/app/id6789162985)

This AI-powered sleep assistant helps parents of infants and toddlers track sleep patterns and receive personalized guidance. It analyzes your child's individual sleep schedule to suggest optimal times for naps and bedtime, adapting to disruptions like illness or travel.

**Highlights:** 24/7 AI sleep coaching, Personalized wake windows and sleep times, Sleep disruption tracking, One-tap sleep tracking, Mood tracking for sleep accuracy, Gentle, science-based sleep recommendations

**In-app purchases:** none


## Frequently asked questions

### Is master studio free?

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

### Is Соня free?

Соня 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.*