The actual name of this app is 'Memory Cleaner', as found at the Apple Mac App Store. I have no idea why it's wrong here at MU. What's annoying about this app is:
A) It pushes ad popups on the user,
B) It phones home user data to Google Analytics. ? Homey don't do that.
-> Note that this is one of FOUR apps specifically named 'Memory Cleaner', which of course causes utter confusion.
-> I have this particular 'Memory Cleaner' installed, but I don't use it. Instead, I still use Rocky Sand Studio's previous free app, no nags or phoning home, named 'Free Memory'. It still works perfectly on Mojave. It was discontinued in favor of 'Memory Cleaner' for reasons listed above.