We’ll talk about both types of cleaners here. There are definitely some effective free Mac cleaners, but the internet is full of cleaning apps you should avoid. But when those downloads accumulate, making your Mac more and more cluttered, Mac cleaners come in handy to remove unneeded junk and save valuable space. Netflix saw a 55% increase in app downloads, which proves we love our shows. We started downloading more content to our Macs filling up our SSDs (or hard drives) with apps, music, other things. Our digital behavior has changed massively within the last two years.