My wife has been tolerant of my adding apps to her iPad, but now that school is starting, and her students will all be sharing it, she wants me to remove as many apps as I can so to save memory. Is that really how it works? We currently have 53 apps, using 9 Gb out of 14 (according to About). Is there a way to tell how much space each app is taking up? She will be installing some kind of office suite, but doesn't know what type of projects the kids will be using the iPad for. Is she really likely to run out of space? Is there a way to keep track of uninstalled apps so that they can be restored later?