MacOS – Delete an app completely (special case) and question regarding empty trash

deletinglaunchpadmacostrash

I downloaded a game and deleted it by just Holding it for few second and click x on the launchpad, because I can still see it occupies 20 GB in my hard disk which is truly annoying. Does it mean it wasn't removed completely?

It seems the Mac can empty the trash securely or not securely?
Does it mean whatever deleted in the trash (even you empty the trash) is possible to recover? Unless you press the Empty trash securely?
Thanks
I feel like I'm so stupid, because I lost 40 GB by just doing deleting and downloading …. BUT I wouldn't lose any disk space if it 's microsoft window… this makes me feel really uncomfortable.. SSD is already very limited disk…

HOW can I get it back and delete it completely ? Is there any apps allow me to do so? THANKS
N.B.I'm currently using the newest model of Mac book pro.

Situation: I deleted the file (by just holding it for few second and press the cross) but it still occupied 20 GB… Is there any way to get the space back?

Best Answer

I suggest you to use Clean My Mac for uninstalling software, it use 35mb of storage and its very useful because it delete all the info and stuff of the program, with this you`ll avoid this kind of problems.