# Nitrox Helper vs Tech Dive

The clearest difference is update cadence: Tech Dive at every 4 weeks against Nitrox Helper's every 9 months. Tech Dive also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Nitrox Helper sells 4 in-app purchases, starting at $0.99 per month and Tech Dive sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Nitrox Helper ships an update every 9 months, Tech Dive every 4 weeks. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Nitrox Helper | Tech Dive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tech-dive/id6483004689/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 16 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert O'Connell](https://appshunter.io/developer/1451300849) | [Skytip LLC](https://appshunter.io/developer/1569880600) |

## What reviewers say

### Nitrox Helper

[App page](https://appshunter.io/ios/app/nitrox-helper/id1451300850)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro 6 Monthly | $5.99 | per 6 months |
| Pro Annual | $9.99 | per year |
| Pro Lifetime | $49.99 | one-time |


### Tech Dive

[App page](https://appshunter.io/ios/app/tech-dive/id6483004689)

This app helps plan scuba dives with various calculators for gas, depth, and air consumption. It supports metric and imperial units and offers advanced features through an in-app purchase.

**Highlights:** Dive planning calculators, Gas and air consumption calculations, Metric and imperial unit support, Depth and EAD calculations, Enriched Air-Nitrox mix calculation, Unit conversion tools

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $0.99 | per month |
| Plus Annual | $7.99 | per year |


## Frequently asked questions

### Is Nitrox Helper free?

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

### Is Tech Dive free?

Tech Dive is free to download, with in-app purchases available.

### Do Nitrox Helper or Tech Dive have ads?

Neither Nitrox Helper nor Tech Dive shows ads.

### Which is updated more often, Nitrox Helper or Tech Dive?

Nitrox Helper ships an update every 9 months, and Tech Dive every 4 weeks. Most recently, Nitrox Helper was updated on September 15, 2026 and Tech Dive on September 24, 2026.

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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.*