Is MacKeeper free to use, and is it safe for my computer?

MacKeeper is not entirely free to use; it offers a limited functionality free version, but the full feature set requires a paid subscription. Its safety for computers has been controversial in the past, with concerns over aggressive advertising and difficulties with uninstallation. However, MacKeeper has evolved over time and claims to have addressed these issues by revamping its software to improve user experience and security. It's crucial to download MacKeeper directly from the official website to avoid counterfeit versions that could potentially harm your computer or compromise its security. Users should also ensure that their operating system is compatible with MacKeeper and consider reviews and feedback from trusted sources when deciding whether it is the right tool for their needs.