Download of PrefCleaner 1.0 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 application is categorized as System Tools. This free Mac application is a product of Modesitt Software.
From the developer:
Many application problems can be solved by deleting the application's preference file. Drag an application to the PrefCleaner window or icon, and the application's preference file is sent to the Trash.
PrefCleaner is a free application for personal use.
You may want to check out more Mac applications, such as Libra, DataLore or NotLight, which might be similar to PrefCleaner.