# Serenity Engine vs Soundora

The clearest difference is ads: Serenity Engine at none against Soundora's shown. Soundora's advantage is iOS requirement (15.1 vs 17.0). On price, 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.

## The numbers

| Metric | Serenity Engine | Soundora |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/serenity-engine/id6758733840/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Monetization | Free | — |
| Size | 120 MB | 34 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ANDREW BRODIE LANDRY](https://appshunter.io/developer/1874662777) | [Yang Li](https://appshunter.io/developer/1880253235) |

## What reviewers say

### Serenity Engine

[App page](https://appshunter.io/ios/app/serenity-engine/id6758733840)

Create immersive ambient soundscapes for focus, relaxation, and sleep. Features curated sound presets, binaural beats for brainwave tuning, and a gentle sleep timer. Enjoy a beautiful visualizer and a distraction-free, ad-free interface.

**Highlights:** Curated ambient soundscapes, Binaural beats for brainwave tuning, Focus, Relax, and Sleep modes, Customizable sleep timer, Real-time audio visualizer, Minimalist, ad-free interface

**In-app purchases:** none


### Soundora

[App page](https://appshunter.io/ios/app/soundora/id6760197898)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Serenity Engine free?

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

### Is Soundora free?

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

### Do Serenity Engine or Soundora have ads?

Soundora shows ads; Serenity Engine does not.

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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.*