# Simple Nitrox vs High Pressure Planner

The clearest difference is device support: High Pressure Planner at 3 against Simple Nitrox's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Simple Nitrox sells 1 one-off in-app purchase and High Pressure Planner sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Simple Nitrox | High Pressure Planner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | — |
| Size | 2 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Simon Chivers](https://appshunter.io/developer/1698955737) | [LUKAS ROSSLER](https://appshunter.io/developer/6796719765) |

## What reviewers say

### Simple Nitrox

[App page](https://appshunter.io/ios/app/simple-nitrox/id6463395880)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Nitrox Full Access | $0.99 | one-time |


### High Pressure Planner

[App page](https://appshunter.io/ios/app/high-pressure-planner/id6796719763)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Nitrox | $1.99 | per month |
| Normoxic Trimix | $3.99 | per month |
| Full Trimix | $6.99 | per month |
| Advanced Nitrox | $14.99 | per year |
| Normoxic Trimix | $29.99 | per year |
| Full Trimix | $49.99 | per year |


## Frequently asked questions

### Is Simple Nitrox free?

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

### Is High Pressure Planner free?

High Pressure Planner is free to download, with in-app purchases available.

### Do Simple Nitrox or High Pressure Planner have ads?

Neither Simple Nitrox nor High Pressure Planner shows ads.

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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.*