Download of Aether 1.6.10 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is Open Reel Software. The software relates to Education Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
Aether is a ham radio logging application for OS X. It includes tools to quickly and easily log QSOs while on the air, as well as organize, search and track your QSOs later. Aether was designed for OS X, and has the same kind of clean, intuitive, friendly interface you've come to expect on the Mac. Features LoTW and eQSL.
You may want to check out more Mac applications, such as Lovers of Aether, which might be related to Aether.