Hi Olivia,
You can use UICatalog app which is designed for learning if you have apple developer account then you can build this app using provisioning profile using XCode tool … and then you can run it on real device and play with it…
There is no way you can rebuild an app using your provisioning profile until its source code is exposed to u… But you can run and test any app on iOS simulator without provisioning profile using its executable ipa or app file …