# Nitrox Buddy vs Dive Nitrox

The clearest difference is rating: Nitrox Buddy at 4.9 against Dive Nitrox's 1.0. Nitrox Buddy also leads on ratings volume (468 vs 2). Dive Nitrox's advantage is in-app purchases (none vs 1) and iOS requirement (8.2 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Nitrox Buddy sells 1 one-off in-app purchase. Dive Nitrox asks for nothing beyond the download.

Nitrox Buddy holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Nitrox Buddy has 468 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | Nitrox Buddy | Dive Nitrox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (468 ratings)](https://appshunter.io/ios/app/nitrox-buddy/id572411073/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/dive-nitrox/id992140216/reviews) |
| Number of ratings | **468** | 2 |
| Positive reviews | 95.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 9 MB |
| Requires iOS | 26.0 | **8.2** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Gereon Steffens](https://appshunter.io/developer/493030228) | [Jim Corbo](https://appshunter.io/developer/987299503) |

## What reviewers say

### Nitrox Buddy

[App page](https://appshunter.io/ios/app/nitrox-buddy/id572411073)

This application serves as a straightforward calculator for nitrox and enriched air divers. It quickly computes essential dive data such as Maximum Operating Depth (MOD), Equivalent Air Depth (EAD), Best Mix, and Partial Pressure of Oxygen (PPO2). It supports both imperial and metric units and offers a companion watch app for on-the-go calculations.

**Highlights:** Calculate MOD, EAD, Best Mix, PPO2, Imperial and metric unit support, Sea and fresh water options, Selectable max oxygen content, Selectable max partial pressure, Companion watch app

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick calculations
- ✅ Accurate results
- 💡 Free to use
- 🎯 Essential for Nitrox divers

**What reviewers complain about**

- 📱 Ugly iPad icon
- ⚠️ MOD calculation limited to 40% O2 in older versions
- ⚠️ MOD calculation limited to 50% O2 in older versions
- ⚠️ Needs to work with older iOS versions

**Reported bugs**

- iPad icon is ugly
- MOD limit of 50% O2 despite 100% O2 setting (resolved)
- MOD limit of 40% O2 (older version)
- Does not work with older iOS versions

**Requested features**

- Add MOD 1.5 option
- Allow MOD calculation up to 100% O2 and indicate max exposure duration
- Change color for inappropriate mixes (e.g., 50% at 40m)
- Support older iOS versions (5 & 6)


### Dive Nitrox

[App page](https://appshunter.io/ios/app/dive-nitrox/id992140216)

This app calculates SCUBA EANx, ppO2, and depth using simple sliders. It determines EAD, MOD, and Best Mix for enriched air nitro mixes. Optimized for specific iPhone models.

**Highlights:** EANx, ppO2, and depth calculation, EAD, MOD, and Best Mix determination, Enriched air nitro mix adjustment, Partial pressure of oxygen adjustment, Depth value adjustment, Slider-based interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nitrox Buddy free?

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

### Is Dive Nitrox free?

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

### Which has better reviews, Nitrox Buddy or Dive Nitrox?

Nitrox Buddy is rated higher. Nitrox Buddy averages 4.9 out of 5 from 468 ratings, while Dive Nitrox averages 1.0 from 2 ratings.

### Do Nitrox Buddy or Dive Nitrox have ads?

Neither Nitrox Buddy nor Dive Nitrox 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.*