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 or MFilter, which might be similar to Ponophile.