AusTides 2.1.0.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 2.1 is the most frequently downloaded one by the program users.
The actual developer of the program is Australian Hydrographic Office. We recommend checking the downloaded files with any free antivirus. The program belongs to Photo & Graphics Tools. AusTides_2016.exe is the common file name to indicate this program's installer.
From the developer:
AusTides is an official electronic product that is equivalent to paper Australian National Tide Tables (ANTTs). AusTides contains information for over 680 Primary (Standard) and Secondary ports in Australia, Papua New Guinea, Solomon Islands, Antarctica and Timor-Leste.
You may want to check out more software, such as InstantAtlas, Diji Album Editor or VTC AIR Player, which might be related to AusTides.