# Сон и медитация c «Серотонин» vs Просто дыши

The clearest difference is in-app purchases: Просто дыши at none against Сон и медитация c «Серотонин»'s 7. Просто дыши also leads on ads (none vs shown). Сон и медитация c «Серотонин»'s advantage is update cadence (monthly vs every 11 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Сон и медитация c «Серотонин» sells 7 in-app purchases, starting at $1.99 per 7 days. Просто дыши asks for nothing beyond the download.

Сон и медитация c «Серотонин» ships an update monthly, Просто дыши every 11 months. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Сон и медитация c «Серотонин» | Просто дыши |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (98 ratings)](https://appshunter.io/ios/app/c/id1485570605/reviews)** | — |
| Number of ratings | **98** | — |
| Positive reviews | 98.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Freemium | — |
| Size | 80 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ilia Moskvin](https://appshunter.io/developer/1485570604) | [Dmitry Sharygin](https://appshunter.io/developer/1679406711) |

## What reviewers say

### Сон и медитация c «Серотонин»

[App page](https://appshunter.io/ios/app/c/id1485570605)

This app helps you fall asleep faster, reduce stress, and learn meditation techniques. It offers guided exercises, breathing practices, and calming sounds to improve your well-being and achieve a state of happiness.

**Highlights:** Guided meditation and mindfulness exercises, Breathing techniques and visual trainer, Sleep sounds and white noise, Progress tracking for meditation sessions, Customizable meditation timer, Stress and panic reduction

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Серотонин на полную, неделя | $1.99 | per 7 days |
| Серотонин на полную, месяц | $4.49 | per month |
| Серотонин на полную, месяц | $6.49 | per month |
| Серотонин на полную, полгода | $19.99 | per 6 months |
| Серотонин на полную, год | $27.49 | per year |
| Серотонин на полную | $44.99 | per year |
| Мотивация+ (на год) | $66.99 | per year |


### Просто дыши

[App page](https://appshunter.io/ios/app/id6446858124)

**In-app purchases:** none


## Frequently asked questions

### Is Сон и медитация c «Серотонин» free?

Сон и медитация c «Серотонин» is free to download, with in-app purchases available.

### Is Просто дыши free?

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

### Do Сон и медитация c «Серотонин» or Просто дыши have ads?

Сон и медитация c «Серотонин» shows ads; Просто дыши does not.

### Which is updated more often, Сон и медитация c «Серотонин» or Просто дыши?

Сон и медитация c «Серотонин» ships an update monthly, and Просто дыши every 11 months. Most recently, Сон и медитация c «Серотонин» was updated on October 15, 2026 and Просто дыши on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*