Mac Cleanup Pro is rogue application. It is developed by PCVARK which is tied to other applications considered rogue software and PUPs. Also, Mac Cleanup Pro pushes various advertisements inside the products to advertise other ones developed by the same company. Scare tactics are also in play, with messages that appear trying to trick Mac users into installing other PUPs or malicious apps.

If you have Mac Cleanup Pro installed on your Mac then check out the article to know more about it and how you can remove the application and everything related to it:

Remove Mac Cleanup Pro PUP