Comparison

Diveplan vs Abysner

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

Head to head
About

Diveplan

Features
Read full description

This app is an aid to your dive planning, enabling you to plan multiple dives using multiple gas mixes - fully supporting air, enriched/nitrox and trimix dives with unlimited cylinders and mixes. This app is only an aid and must not be used in place of proper training and a dive computer. It only provides estimates of gas usage and decompression stops - you should not use this app to make any decisions related to your safety.

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!

Screenshots

Diveplan4 screens
Abysner4 screens

Verdict

The call

The clearest difference is price: Diveplan at $0.99 against Abysner's $2.99. On update cadence, 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

Diveplan costs $0.99 and Abysner $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Diveplan ships an update monthly, Abysner every 2 months. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

Scorecard1 real difference · 9 level
Diveplan versus Abysner: the parameters behind the verdict, then further details
ParameterDiveplanAbysner
Price$0.99 — better$2.99
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.3 — better
Further details — not scored
Size52 MB42 MB
Age rating17+4+
DeveloperCS Bruford LtdRoelof Rene Smit

In-app purchases

None

Diveplan

No in-app purchases

None

Abysner

No in-app purchases

Questions

Is Diveplan free?
Diveplan costs $0.99, with no in-app purchases.
Is Abysner free?
Abysner costs $2.99, with no in-app purchases.
Do Diveplan or Abysner have ads?
Neither Diveplan nor Abysner shows ads.
Which is updated more often, Diveplan or Abysner?
Diveplan ships an update monthly, and Abysner every 2 months. Most recently, Diveplan was updated on October 13, 2026 and Abysner on October 5, 2026.

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