Having apps that open on Startup can be both a bane and boon for both Mac and Windows computers. Hence, you would have to use a Mac cleaner software like CleanMyMac X to remove them from the startup on Mac. As an Amazon Associate, We earn a commission from qualifying purchases at no extra cost to you.Įditor’s Note: the Login Items method may not stop some apps from opening on startup, and some may not even show up on the startup list.