Free My Desktop automatically hides all the icons from your desktop, the dock and the menubar. The app lives in the menubar itself so you can toggle “focus mode” on and off as you please with a simple click.
For a long time, there is no easy way to hide the apps on your iPhone or iPad until 2022, there is a new API which is introduced on WWDC. With AALocker, you can just select the app you want to hide, and click ok, done.