iCyclone 0.9.5 for Mac could be downloaded 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 free software for Mac is AlitaCrew. We recommend checking the downloaded files with any free antivirus.
From the developer:
iCyclone is an open source fan controller licenced under the GPL with an easy to use interface, support for many Mac OS X system technologies such as Growl, Sparkle andthe Keychain.