Subsurface is an open source project that provides users with a unique and sophisticated diving log application that’s capable of tracking both single-tank and multi-tank dives using air, TriMix or Nitrox.

The program has been written by Linus Torvalds, the father of the Linux kernel, which is now used on thousands of open source operating systems. He created Subsurface out of frustration with the lack of good divelog applications for the Linux platform.

Features at a glance

The software has been engineered from the ground up to allow users to log the exposure and weights protection used, dive buddies, dive masters, as well as to rate dives and add personal notes for each dive.

Thanks to the built-in GPS support, the program can also track track dive locations. When adding a new dive note, users will be able to input the start time, air temperature, location, coordinates, divemaster, buddy, suit, rating, visibility, tags, and the actual notes.

In addition, you can add detailed information about the equipment used in cylinders and weights, such as type, size, workpress, startpress, endpress, oxygen, and helium. Various statistics are shown on the Stats tab, such as depth, duration, temperature, total time, dives, and SAC.

The Dive Info tab will display a summary of the currently selected dive, such as date, gases used and consumed, maximum and average depth, air pressure and temperature, salinity, dive time, OTU, water temperature, SAC, and interval.

Under the hood, supported operating systems and conclusions

A quick look under the hood, will tell us that the application’s graphical user interface is written with the Qt GUI toolkit, which means that the software is fully compatible with the Linux, Microsoft Windows and Mac OS X operating systems.

Summing up, Subsurface is a great divelog application for the Windows and Mac OS X platforms, and a breathtaking software for the open source ecosystem, where dive logging apps are next to none.

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Divelog software Divelog application Diving log Divelog Diving Log Journal