Is MacKeeper a legitimate and safe software to use?

MacKeeper is a legitimate software utility for macOS that offers a variety of tools including cleaning, security, and optimization features. However, it has had a controversial reputation among users and experts in the tech community. Some users have found it useful for removing unwanted files and potential malware, but others have criticized it for aggressive advertising tactics and questionable utility. Concerns regarding its safety mostly stem from past allegations about overly persistent notifications and difficulties with uninstallation, rather than direct threats to a user's system. When considering whether or not to use MacKeeper, one should research current reviews and user experiences, as these can provide insight into the software's current standing and reliability.