Not only is it able to instantly fix the problem of unwanted system files, useless apps, and memory-occupying extensions and plugins, it also claims to be the gold standard in Mac virus or malware detection, giving you a 'real-time shield against trojans, data miners, and recent browser hijackers.' This antivirus feature is a fantastic addition to the app, meaning that your device is not only optimized, but protected from nasty intruders as well. With the ability to clean out many gigabytes of system junk-including cached files or incomplete downloads-tackle hidden and useless files, free up RAM to speed up your device, and disable apps or plugins that are hogging resources on your computer, CleanMyMac is an absolute powerhouse. We've featured it across lots of articles before, and it's very clear why. CleanMyMac X is something of a personal favorite for me, with lots of my coworkers finding it to be similarly useful.