YouTube on the iPhone

Hello everyone, I'm looking for a good app for accessing YouTube on my iPhone? I know there is a preinstalled YouTube app...but it really leaves a lot to be desired in terms of functionality. (In the accessibility department, the app is A okay.) What I'm wanting to be able to do is sort video search results by date, most recent being first. I haven't been able to find a way to do that using the Apple YouTube app, so now I'm looking for other solutions. Any suggestions would be greatly appreciated. Thanks, Michael