I was looking at Storage Manager in Sierra and noticed that I have all my iOS apps saved to my macOS SSD. Is there any reason to have the apps saved to Sierra? Can I delete the iOS apps from Sierra to save a ton of space? If this is OK to do, how can I stop iTunes from saving the iOS apps again in the future to iTunes? The apps end of using quite a bit of storage and it would be nice to know that I can delete them and open up a fair amount of space on my SSD.