# Simple Nitrox — Calculate MOD and Best Nx%

> Calculate MOD and Best Nx% (iPhone/iPad app by Simon Chivers.)

- Source: https://appshunter.io/ios/app/simple-nitrox/id6463395880 (this page in markdown: same URL + `.md`)
- Developer: [Simon Chivers](https://appshunter.io/developer/1698955737)
- Category: Sports, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: American English
- Released: 2023-09-02
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/simple-nitrox/id6463395880/reviews.md

## What is Simple Nitrox?

Simple Nitrox provides an easy to use and very visible calculation of Maximum Operating Depth for scuba diving. The most appropriate nitrox mix can also be calculated for a planned depth.

Widgets can be added to the Home Screen for up to 5 tanks for easy access to the values for previously analysed tanks and the application.

Supports metric and imperial, and o2 up to 99%.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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



## Version history (last 2 releases)

### 1.1 — 2026-01-12

Incremental improvements.

### 1.0 — 2023-09-03

No release notes.

## Apps similar to Simple Nitrox

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [AWU Divelog](https://appshunter.io/ios/app/awu-divelog/id6450554075) | 3.0 (2) | $3.99 | Sports |
| [Tech Dive](https://appshunter.io/ios/app/tech-dive/id6483004689) | 5.0 (2) | Free | Sports |
| [Nitrox Buddy](https://appshunter.io/ios/app/nitrox-buddy/id572411073) | 4.9 (431) | Free | Sports |
| [O'Dive](https://appshunter.io/ios/app/odive/id1534593720) | 5.0 (1) | Free | Sports |
| [Diveplanner Tec & Rec](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833) | 3.0 (4) | Free | Sports |
| [TrimixBlending](https://appshunter.io/ios/app/trimixblending/id6749371808) | — | Free | Sports |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*