But is it time for Mac users to take notice? Features A yearly subscription license costs $59.99 per Mac, but it can be had for as low as $16.89 for one machine through a special 20% discount offer. The software is available as a free download, but you need to purchase a license to actually make use of the product – though doing so is protected by a 30-day money back guarantee. Avast Cleanup Pro seems to be the Mac version of the Cleanup Premium app that is available for Windows users and is part of this new offering specifically developed for the growing market of Mac users that the company sees as an opportunity on which it can capitalize. Known and trusted by millions of Windows PC and Android users for its antivirus products, Avast is now looking to conquer new markets by offering a handful of apps optimizing Mac performance, security and privacy.