# Deep Tools vs Simple Nitrox

The clearest difference is update cadence: Deep Tools at every 2 months against Simple Nitrox's every 29 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Deep Tools sells 3 in-app purchases, starting at $7.99 per month and Simple Nitrox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Deep Tools ships an update every 2 months, Simple Nitrox every 29 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Deep Tools | Simple Nitrox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (93 ratings)](https://appshunter.io/ios/app/deep-tools/id1476093876/reviews)** | — |
| Number of ratings | **93** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 29 months |
| Monetization | Freemium | — |
| Size | 13 MB | 2 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Deep Blue d.o.o.](https://appshunter.io/developer/1476093875) | [Simon Chivers](https://appshunter.io/developer/1698955737) |

## What reviewers say

### Deep Tools

[App page](https://appshunter.io/ios/app/deep-tools/id1476093876)

This app is a comprehensive tool for divers, offering dive planning, logging, and gas blending. It supports recreational, technical, and rebreather diving with advanced decompression planning and dive computer integration. Plan complex dives, log your adventures, and mix gases with precision.

**Highlights:** Decompression dive planning (Bühlmann ZH-L16), Dive log with Shearwater import, Nitrox and Trimix gas blending, Multiple dive calculators, Metric and imperial unit support, Multi-level and repetitive dive planning

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription Monthly | $7.99 | per month |
| Subscription Yearly | $22.99 | per year |
| Lifetime Subscription | $49.99 | one-time |


### 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 |


## Frequently asked questions

### Is Deep Tools free?

Deep Tools is free to download, with in-app purchases available.

### Is Simple Nitrox free?

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

### Do Deep Tools or Simple Nitrox have ads?

Neither Deep Tools nor Simple Nitrox shows ads.

### Which is updated more often, Deep Tools or Simple Nitrox?

Deep Tools ships an update every 2 months, and Simple Nitrox every 29 months. Most recently, Deep Tools was updated on November 11, 2026 and Simple Nitrox on November 7, 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.*