# Underwave Training vs SoundBreathing

The clearest difference is in-app purchases: Underwave Training at none against SoundBreathing's 2. Underwave Training also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 7 months). On price and device support there is nothing between them.

Both are free to download. SoundBreathing sells 2 in-app purchases, starting at $1.99 per month. Underwave Training asks for nothing beyond the download.

Underwave Training ships an update every 3 weeks, SoundBreathing every 7 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Underwave Training | SoundBreathing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Size | 30 MB | 45 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Augusto Carrara](https://appshunter.io/developer/1708869023) | [SYNAPPS Mobile](https://appshunter.io/developer/1828629353) |

## What reviewers say

### Underwave Training

[App page](https://appshunter.io/ios/app/underwave-training/id6467622177)

**Features:** macOS Compatibility

**In-app purchases:** none


### SoundBreathing

[App page](https://appshunter.io/ios/app/soundbreathing/id6749048901)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Breather | $1.99 | per month |
| Annual breather | $24.90 | per year |


## Frequently asked questions

### Is Underwave Training free?

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

### Is SoundBreathing free?

SoundBreathing is free to download, with in-app purchases available.

### Do Underwave Training or SoundBreathing have ads?

SoundBreathing shows ads; Underwave Training does not.

### Which is updated more often, Underwave Training or SoundBreathing?

Underwave Training ships an update every 3 weeks, and SoundBreathing every 7 months. Most recently, Underwave Training was updated on October 25, 2026 and SoundBreathing on October 25, 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.*