# Trimix Tools vs Abysner

The clearest difference is price: Abysner at $2.99 against Trimix Tools's $6.99. Abysner also leads on update cadence (every 2 months vs every 5 months). Trimix Tools's advantage is chart position (#74 vs unranked). On rating, review sentiment, ratings volume and ads there is nothing between them.

Trimix Tools costs $6.99 and Abysner $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Trimix Tools against 5.0 for Abysner. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Trimix Tools ships an update every 5 months, Abysner every 2 months. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Trimix Tools | Abysner |
| --- | --- | --- |
| Price | $6.99 | **$2.99** |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/trimix-tools/id289220808/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/abysner/id6636477320/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | **#74** | — |
| Size | 6 MB | 42 MB |
| Requires iOS | 15.6 | **15.3** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [Roelof Rene Smit](https://appshunter.io/developer/1762786000) |

## 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


### Abysner

[App page](https://appshunter.io/ios/app/abysner/id6636477320)

This app is an open-source dive planning tool designed for simplicity and ease of use. It supports various gas mixes and decompression models, allowing for accurate planning of technical and recreational dives. Its intuitive interface makes it suitable for use even in challenging conditions.

**Highlights:** Buhlmann ZHL-16 A, B, C models, Multi-gas support (Air, Nitrox, Trimix, etc.), OTU and CNS tracking, Customizable environmental settings, Intuitive gas picker, Automatic contingency plans, Multi-level dive planning

**In-app purchases:** none


## Frequently asked questions

### Is Trimix Tools free?

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

### Is Abysner free?

Abysner costs $2.99, with no in-app purchases.

### Which has better reviews, Trimix Tools or Abysner?

Trimix Tools and Abysner are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do Trimix Tools or Abysner have ads?

Neither Trimix Tools nor Abysner shows ads.

### Which is updated more often, Trimix Tools or Abysner?

Trimix Tools ships an update every 5 months, and Abysner every 2 months. Most recently, Trimix Tools was updated on September 10, 2026 and Abysner on September 18, 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.*