When you download apps, then delete them after do you get your exact memory back?
Yes, you get back the amount of space the deleted item had occupied, nothing more and nothing less. This applies to deleted texts, emails, and other items in the device too. For more details, check http://www.ehow.com/search.html?s=how+to+delete+items+from+a+device&skin=corporate&t=all.
Why wouldn't you?You do on an iPad, iPod or an iPhone-- when installing, closing, then deleting the app from the Apple AppStore. (Clear the cache and any cookies.) I have them--been there, seen that.