Download of MR Click 5.4 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The most popular version among the program users is 5.4. This software for Mac OS X is a product of Wave Arts. The application's installer is commonly called MasterRestoration549.dmg. The software lies within System Tools, more precisely System Optimization.
From the developer:
MR Click combines click and crackle filtering for cleanup of phonograph recordings or other impulsive contamination. MR Click has separate processors for clicks and crackles because of the different nature of the contaminants. We use the term “click” to mean a large disturbance, such as caused by a phonograph scratch or a splice in a digital signal.
You may want to check out more Mac applications, such as Mr. Photos, Mr Word Lite or Dr Jekyll and Mr Hyde - EXTENDED EDITION, which might be related to MR Click.