Best star chart app?

[TyWahn]

I saw the coolest star chart app on a Droid-based phone. You point it at the sky and there it was! The night sky! Any time of day!
Now that I have my ip4, replacing my barely functioning 3G, I want a similar app. Which is the best out there?
Thanks for any advice.

 

[xmtgx]

Star Walk, same as the android one pretty much, It's 3 bucks though compared to the free android one.