# Trimix Tools vs ProTec Smart

The clearest difference is price: ProTec Smart at $3.99 against Trimix Tools's $6.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Trimix Tools costs $6.99 and ProTec Smart $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trimix Tools ships an update every 5 months, ProTec Smart every 4 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Trimix Tools | ProTec Smart |
| --- | --- | --- |
| Price | $6.99 | **$3.99** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/trimix-tools/id289220808/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 6 MB | 58 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [Alpha ITC](https://appshunter.io/developer/1476253737) |

## What reviewers say

### Trimix Tools

[App page](https://appshunter.io/ios/app/trimix-tools/id289220808)

This app provides essential tools for divers to plan and blend Trimix gases. It calculates optimal mixes based on depth, oxygen partial pressure, and equivalent narcotic depth, and supports various cylinder filling scenarios. Calculations are available offline and can be customized with saved settings.

**Highlights:** Trimix blending and planning, Depth and partial pressure calculations, Equivalent Narcotic Depth (END) calculation, Saltwater and freshwater support, Cylinder filling and bleed down calculations, Metric and Imperial system support, Offline functionality, Saved settings and custom mixes

**Features:** Vision Pro support

**In-app purchases:** none


### ProTec Smart

[App page](https://appshunter.io/ios/app/protec-smart-card/id1480710270)

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

**In-app purchases:** none


## Frequently asked questions

### Is Trimix Tools free?

Trimix Tools costs $6.99, with no in-app purchases.

### Is ProTec Smart free?

ProTec Smart costs $3.99, with no in-app purchases.

### Do Trimix Tools or ProTec Smart have ads?

Neither Trimix Tools nor ProTec Smart shows ads.

### Which is updated more often, Trimix Tools or ProTec Smart?

Trimix Tools ships an update every 5 months, and ProTec Smart every 4 months. Most recently, Trimix Tools was updated on October 14, 2026 and ProTec Smart on October 9, 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.*