# Trimix Tools vs Diveplanner Tec & Rec

The clearest difference is review sentiment: Trimix Tools at 100% against Diveplanner Tec & Rec's 33%. Trimix Tools also leads on rating (5.0 vs 3.1) and in-app purchases (none vs 3). Diveplanner Tec & Rec's advantage is price (Free vs $6.99). On ratings volume, update cadence, ads and device support there is nothing between them.

Diveplanner Tec & Rec is free to download; Trimix Tools costs $6.99 up front. Diveplanner Tec & Rec sells 3 one-off in-app purchases. Trimix Tools asks for nothing beyond the download.

Trimix Tools holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 5 and 7 respectively. Written reviews point the same way: 100% of Trimix Tools's written reviews are positive against 33% of Diveplanner Tec & Rec's.

Trimix Tools ships an update every 5 months, Diveplanner Tec & Rec every 3 months. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Trimix Tools | Diveplanner Tec & Rec |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/trimix-tools/id289220808/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833/reviews) |
| Number of ratings | 5 | **7** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 6 MB | 83 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [Sensetrails LLC](https://appshunter.io/developer/806088250) |

## 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


### Diveplanner Tec & Rec

[App page](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833)

Plan technical and recreational scuba dives with detailed gas management, decompression schedules, and contingency planning. This tool helps divers quickly create and share dive plans for various depths and conditions.

**Highlights:** Technical and recreational dive planning, Multi-gas and CCR dive schedules, Bühlmann decompression model (ZH16L-C), Automatic contingency plans, Gas requirement and weight calculation, Dive table generation, Metric and Imperial units

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two weeks free trial | Free | one-time |
| Tec Basic | $7.99 | one-time |
| Tec Advanced | $19.99 | one-time |


## Frequently asked questions

### Is Trimix Tools free?

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

### Is Diveplanner Tec & Rec free?

Diveplanner Tec & Rec is free to download, with in-app purchases available.

### Which has better reviews, Trimix Tools or Diveplanner Tec & Rec?

Trimix Tools is rated higher. Trimix Tools averages 5.0 out of 5 from 5 ratings, while Diveplanner Tec & Rec averages 3.1 from 7 ratings.

### Do Trimix Tools or Diveplanner Tec & Rec have ads?

Neither Trimix Tools nor Diveplanner Tec & Rec shows ads.

### Which is updated more often, Trimix Tools or Diveplanner Tec & Rec?

Trimix Tools ships an update every 5 months, and Diveplanner Tec & Rec every 3 months. Most recently, Trimix Tools was updated on October 14, 2026 and Diveplanner Tec & Rec on October 16, 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.*