# Trimix Tools vs iDeco Pro

The clearest difference is review sentiment: Trimix Tools at 100% against iDeco Pro's 52%. Trimix Tools also leads on rating (5.0 vs 3.9) and update cadence (every 5 months vs every 18 months). iDeco Pro's advantage is iOS requirement (7.0 vs 15.6). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Trimix Tools costs $6.99 and iDeco Pro $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trimix Tools holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews point the same way: 100% of Trimix Tools's written reviews are positive against 52% of iDeco Pro's.

Trimix Tools ships an update every 5 months, iDeco Pro every 18 months. The most recent releases landed on September 10, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Trimix Tools | iDeco Pro |
| --- | --- | --- |
| Price | **$6.99** | $8.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/trimix-tools/id289220808/reviews)** | [3.9 (10 ratings)](https://appshunter.io/ios/app/ideco-pro/id329772936/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | **100.0% of reviews** | 52.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 18 months |
| Monetization | Paid | Paid |
| Best chart rank | **#74** | #82 |
| Size | 6 MB | 3 MB |
| Requires iOS | 15.6 | **7.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [B2 Prototech LLC](https://appshunter.io/developer/1575972363) |

## What reviewers say

### Trimix Tools

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

**Currently charting:** #74 Top Paid · Sports (US App Store)

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


### iDeco Pro

[App page](https://appshunter.io/ios/app/ideco-pro/id329772936)

**Currently charting:** #82 Top Paid · Sports (US App Store)

This app is a comprehensive dive planner for technical divers, supporting both open circuit and closed-circuit rebreather (CCR) diving. It calculates decompression stops, gas usage, CNS and OTU exposure, and surface intervals. The app also includes a gas mixer for planning custom gas blends.

**Highlights:** Open Circuit and CCR dive planning, Decompression stop calculation, Gas usage and CNS/OTU tracking, Surface interval tracking, Gas fill/mixer functionality, Bailout planning for overhead environments, Configurable settings within the app

**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 iDeco Pro free?

iDeco Pro costs $8.99, with no in-app purchases.

### Which has better reviews, Trimix Tools or iDeco Pro?

Trimix Tools is rated higher. Trimix Tools averages 5.0 out of 5 from 5 ratings, while iDeco Pro averages 3.9 from 10 ratings.

### Do Trimix Tools or iDeco Pro have ads?

Neither Trimix Tools nor iDeco Pro shows ads.

### Which is updated more often, Trimix Tools or iDeco Pro?

Trimix Tools ships an update every 5 months, and iDeco Pro every 18 months. Most recently, Trimix Tools was updated on September 10, 2026 and iDeco Pro on September 23, 2026.

### Which is more popular, Trimix Tools or iDeco Pro?

Trimix Tools currently peaks at #74 in the App Store charts, and iDeco Pro at #82. Chart position reflects recent download velocity rather than total install base.

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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.*