Thoth[1] is a newsreader for Mac OS X written by Brian Clark, currently at its revision 1.9.1.2. It requires Mac OS X 10.5.0 on Intel or PPC. There are also special versions for MacOS 10.4 PPC or Intel.
On December 30, 2013 the developer posted a notice to the software's web site stating that development and sales of Thoth had ceased, and that the software was no longer available for download. Poor sales was the reason given for this action.