A wide variety of scuba based calculations for all levels of divers.

Basic Calculations Include:
-SAC / RMV rates
-Tank volume / Pressure rating
-Basic unit conversions

Nitrox Calculations Include:
-EANx best mix
-Integrated top-up and bleed down mix calculations
-What if top–up
-EANx mix planning

Trimix Calculations Include:
-Integrated top-up and bleed down mix calculations
-What if top–up
-Trimix planning
-Best Trimix

All blending and top up pages include gas volume and cost calculations.

Trimix gas fill orders can be changed by simply dragging the icons to select the fill order.

Oxygen can be selected as narcotic / non-narcotic on the appropriate calculation pages.

Results can be copied to the clipboard in a text format for use in E-mails, messages or other forms of documentation.

All pages support metric and imperial units. Many pages include both metric and imperial units.

What’s New

Version 1.2

This app has been updated by Apple to display the Apple Watch app icon.

- Support for iOS 9.2.1
- UI fixes
- Miscellaneous bug fixes

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, Zanthic Innovations Inc., has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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