Downloading Ponophile 1.4 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The program lies within Audio & Video Tools, more precisely Editors & Converters. This software for Mac OS X is a product of Bytewizard Ltd.
From the developer:
Ponophile is a powerful DSD audio converter. The program is designed primarily for users who would like to play their high-end DSD music stuff on instruments supporting PCM audio formats (WAV, FLAC, AIFF, ALAC). The application provides a high quality conversion algorithm for maximal musical experience.
You may want to check out more software for Mac, such as VCode, MFilter or Aiseesoft WMV Converter for Mac, which might be similar to Ponophile.