# Dive Nitrox vs Subsurface

The clearest difference is rating: Subsurface at 4.5 against Dive Nitrox's 1.0. Subsurface also leads on ratings volume (48 vs 2). Dive Nitrox's advantage is iOS requirement (8.2 vs 17). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Subsurface holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Subsurface has 48 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | Dive Nitrox | Subsurface |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/dive-nitrox/id992140216/reviews) | **[4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews)** |
| Number of ratings | 2 | **48** |
| Positive reviews | — | 63.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | Free |
| Size | 9 MB | 52 MB |
| Requires iOS | **8.2** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Jim Corbo](https://appshunter.io/developer/987299503) | [Dirk Hohndel](https://appshunter.io/developer/1093217160) |

## What reviewers say

### 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


### Subsurface

[App page](https://appshunter.io/ios/app/subsurface-mobile/id1093217161)

This application allows divers to manage their dive logs on their mobile devices. It supports editing dive data and downloading new information from compatible dive computers. Optional cloud synchronization is available for seamless data transfer with desktop versions.

**Highlights:** Mobile dive log management, Edit dive data, Download from Bluetooth LE dive computers, Optional cloud synchronization, Open-source and free

**In-app purchases:** none


## Frequently asked questions

### Is Dive Nitrox free?

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

### Is Subsurface free?

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

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

Subsurface is rated higher. Dive Nitrox averages 1.0 out of 5 from 2 ratings, while Subsurface averages 4.5 from 48 ratings.

### Do Dive Nitrox or Subsurface have ads?

Neither Dive Nitrox nor Subsurface 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.*