# Respiratory Notes vs NxGen Peak Flow

The clearest difference is in-app purchases: NxGen Peak Flow at none against Respiratory Notes's 1. NxGen Peak Flow also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Respiratory Notes sells 1 in-app purchase, starting at $39.99 per year. NxGen Peak Flow asks for nothing beyond the download.

## The numbers

| Metric | Respiratory Notes | NxGen Peak Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/respiratory-notes/id6569241898/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 55 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Safey Medical Devices Ltd](https://appshunter.io/developer/1551912769) |

## What reviewers say

### Respiratory Notes

[App page](https://appshunter.io/ios/app/respiratory-notes/id6569241898)

This app provides a comprehensive, procedure-based reference for respiratory therapy information. It includes illustrations, forms, and algorithms to aid in study and practice, with content organized around protocols and new pulmonary disease tabs. An in-app purchase unlocks all content, and a subscription offers continuous updates.

**Highlights:** Procedure-based format, Supporting illustrations and tables, Fill-in-the-blank forms, Algorithms based on AARC Guidelines, SmartSearch technology, Offline content access

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Respiratory Notes | $39.99 | per year |


### NxGen Peak Flow

[App page](https://appshunter.io/ios/app/nxgen-peak-flow/id6727005153)

**In-app purchases:** none


## Frequently asked questions

### Is Respiratory Notes free?

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

### Is NxGen Peak Flow free?

NxGen Peak Flow is free to download, with no in-app purchases.

### Do Respiratory Notes or NxGen Peak Flow have ads?

Respiratory Notes shows ads; NxGen Peak Flow 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.*