Tech Diving Mag

Ultimate Planner VPM-B and Buhlmann-GF Deco Planner

Ultimate Planner is a decompression planning software program incorporating both Varying Permeability Model with Boyle's Law compensation (VPM-B) and Buhlmann's published ZHL-16B and ZHL-16C, along with ZH-L16D (based on his recommendations) with Erik Baker's Gradient Factors for OC and CCR dives. Some of its features and capabilties are:

* Intuitive user interface and virtually unlimited number of repetitive dives in one mission
* Optional pre-defined gas list for deco/bailout to facilitate data entry
* Lost deco gas plans and increased time/depth plans
* Optional display of the tissue loadings upon surfacing
* Optional extension of deco stops
* Enhanced algorithm for intital descents with gas switch (travel gas) and multilevel ascents
* Optional second ascent rate for the shallower part of the dive
* High and low ppO2 warnings
* Isobaric Counter Diffusion (ICD) alerts starting at adjustable dive depths
* Altitude diving adjustments
* CNS and OTU tracking
* Gas consumption estimation
* CCR bailout
* Breathing mix calculator
* Metric and imperial units
* Comes in four themes
* One click on-demand information about the new, distinctive configuration features
* UNIQUE: Optional model (ZH-L16D) based on Buhlmann's recommendations (adaptation for colder dives)
* UNIQUE: Accelerating no-fly time using surface oxygen/Nitrox calculator
* UNIQUE: Optional second dimension of conservatism by applying asymmetric gas kinetics (/U)
* UNIQUE: Optional slower compartment halftime set for VPM-B for extreme dives
* UNIQUE: The ability to monitor the inner ear as either lipid or aqueous tissue (for ICD)

Ultimate Planner VPM-B and Buhlmann-GF Deco Planner Configuration Ultimate Planner Breathing Mix Calculator Ultimate Planner Altitude Configuration
Ultimate Planner is available for Linux, Microsoft Windows and Mac OS X (version 10.7.3 or higher). Required screen resolution is 800 x 600 or higher. To take a look at how Ultimate Planner works, download the user guide in PDF format, or download the free, portable Lite version in ZIP format (no ads, no nag screens, PDF user guide included).

Ultimate Planner No Fly Time Acceleration

Ultimate Planner is a green software; no installation process is required and no changes in system settings take place. It comes in 4 different themes; default, gray, Egyptian blue and dark (high contrast).

Ultimate Planner High Contrast Theme

The Lite version neither expires nor has maximum number of runs. It is ad-free and does not employ nag screens. It inherits the majority of the full version's features listed above, including some of the unique ones, yet is limited to OC dives with one deco mix. It has restrictions on opening/saving/printing, accelerating no-fly time, using pre-defined deco gases, displaying tissue loadings and theme change.

Download free Lite version in ZIP format (portable, no installation required, user guide included).
Download user guide only in PDF format.

Ultimate Planner's license is valid for life and includes any program and/or documentation updates to come. Also two concurrent installtions are allowed (desktop and laptop, or Windows and Mac, for instance). For more info, drop a line to

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Buy Ultimate Planner (1 license) for 89.99 EUR.

SAVE 40 EUR! Buy Ultimate Planner (3 licenses) for your tech diving group! for 229.99 EUR.

If the purchase link is not working due to server overload, drop a line to to report the issue. After your purchase and depending on your payment method, please allow us up to 72 hours (usually takes only minutes) in order for our payment processing gateway to verify your order. You will then receive an email message with the download link and the installation instructions.