Can I use UDK’s iOS Development feature to create a "Utility" rather than a game?

As an example would I be able to create a social media app pertaining to iOS

yeah you can create a social bookmarking app with regard to iOS.You will have to make any friendly User interface (UI).Try mirroring interfaces that will users understand so they don’t have to learn to navigate over and over again.If you wish to make that app you will need to focus to the design, make a simple easy selection with loads of easy to get features.Take advantege on the tap feature with the device and also place the action buttons wisley.Go to this internet site http://www.poweriphoneapps.com and find the free eBook it offeres by simply subsribing and you should find priceless information.I really hope it assists you to and All the best .with your own app growth and I hope I find it in the App Keep at Apple!