Abysner

The open-source dive planner

$2.99

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!

Ratings & Reviews

  • 5.0
    out of 5
    2 Ratings

This is a maintenance release. It contains internal refactoring for upcoming features. In addition, it includes a few small feature changes, such as a higher default GF-low value and the addition of Nitrox 28 as a standard gas.

Version 1.0.8

The developer, Roelof Rene Smit, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Roelof Rene Smit
    Size
    • 45.3 MB
    Category
    • Sports
    Compatibility
    Requires iOS 15.3 or later.
    • iPhone
      Requires iOS 15.3 or later.
    • iPad
      Requires iPadOS 15.3 or later.
    • iPod touch
      Requires iOS 15.3 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2025 NeoTech
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

    You Might Also Like