I should also mention CoCoHue. It's a user created app and seems to be very popular. You would use one or the other to integrate your Hue Bridge. I believe there is also another user created app. You can just search the forums for it/them if you need. Having said that you should probably stick with the built in app. If it doesn't do what you want or need, you can take a look at the others to see if they will fill the need.