iOS: Generally speaking, clipboard managers aren't really necessary for most of us on desktops, but they are pretty useful on smartphones and tablets. Copied is one of the better options out there with a ton of features that make copying and pasting on iOS a little less cumbersome.
Copied does pretty much everything a copy manager should and it does it well. It keeps a bit repository of everything you copy, lets you easily edit clippings, quickly share links and text, has ton of gestures, and has an excellent batch feature. If you use your iPad for work a lot, Copied is incredibly useful to keep around.
Copied (Free) [iTunes App Store]