And we all already knew that. He's looking for something that will kill all of them at once.
Except it is NO different than running ATK on an Android, you still have to click on the processes you want to kill. Requires pretty much the same effort. Its not one click, unless you want to kill what ATK pre-selects.
But given how well iOS manages memory, its really not even necessary. It uses the same inactive, free, wired, active model that OSX does.