Comparison

Abysner vs TrimixBlending

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Abysner

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
Read full description

Abysner is an open-source, modern dive planning tool with a focus on simplicity and usability. Built to give something back to the diving community, its primary aim is not to be the most feature-rich, but to be quick, user-friendly, and straightforward. Whether you're planning a deep technical dive or just want to check your MOD, Abysner makes dive planning smooth, accurate, and fast—perfect for use even right beside the water. Supported Features: • Models: Supports Buhlmann ZHL-16 A, B, and C with gradient factors. • Multi-Gas Support: Plan dives with Air, Nitrox, Oxygen, Trimix, Helitrox, Heliox, and more. • Oxygen: Includes OTU and CNS tracking for safe dive planning. • Customizable Settings: • Set salinity and altitude according to the diving environment. • Adjust SAC rates, ascent/descent rates. • Fine-tune decompression stop intervals and last deco stop depth. • Control max PPO2 for both during deco stops and normal diving. • Gas Picker: An intuitive interface for selecting and managing gas mixes, with critical information at your fingertips. • Automatic Contingency Plans: Automatically adjusts for longer or deeper dives, with configurable extra time and depth. • Gas Planning: • Visual chart of gas requirements per mix. • Density and PPO2 info at maximum depths for each gas. • Multi-Level Dive Planning: Plan dives across different depths with ease. Please note: CCR planning is not available yet. More coming soon!

About

TrimixBlending

Features
Read full description

This app allows technical divers to create custom Trimix blends (Helium, Oxygen, Nitrogen) using partial pressure blending (PPB), with support for Nitrox top-ups and ideal gas law calculations for precise gas mixing. Real Gas Calculations, uses equations of state (Van der Waals) for accurate blending. Accounts for molecular interactions and non-ideal behavior

Screenshots

Abysner4 screens
TrimixBlending1 screens

Verdict

The call

The clearest difference is price: TrimixBlending at Free against Abysner's $2.99. Abysner's advantage is update cadence (every 2 months vs every 14 months) and iOS requirement (15.3 vs 26.5). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

TrimixBlending is free to download; Abysner costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Abysner ships an update every 2 months, TrimixBlending every 14 months. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
Abysner versus TrimixBlending: the parameters behind the verdict, then further details
ParameterAbysnerTrimixBlending
Price$2.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.3 — better26.5
Further details — not scored
Size42 MB4 MB
Age rating4+4+
DeveloperRoelof Rene SmitCostas Bakopanos

In-app purchases

None

Abysner

No in-app purchases

None

TrimixBlending

No in-app purchases

Questions

Is Abysner free?
Abysner costs $2.99, with no in-app purchases.
Is TrimixBlending free?
TrimixBlending is free to download, with no in-app purchases.
Do Abysner or TrimixBlending have ads?
Neither Abysner nor TrimixBlending shows ads.
Which is updated more often, Abysner or TrimixBlending?
Abysner ships an update every 2 months, and TrimixBlending every 14 months. Most recently, Abysner was updated on September 18, 2026 and TrimixBlending on September 23, 2026.

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