CleanMyMac 3 is not an essential application but greatly facilitates tasks that would take us more than a click them on our own Requirements: Home Page - https://macpaw.com/cleanmymac
The good thing about CleanMyMac 3 is that only a click can perform maintenance or cleaning that often prove useful. Garbage mainly functions of the system, Uninstaller and large files. With those three can keep a good control of the health of our Mac, especially if we suffer a bit of digital Diogenes syndrome.
In short, if you do not want complications CleanMyMac 3 me seems highly recommended.
Intel requires Mac OS X 10.8 or later.
Intel, 64-bit processor
OS X 10.8 to 10.11
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.