DTPinLockController
New version 2.0 now fully supports iOS 5 through iOS 8 on all iPhones and iPads.
Just like the passcode lock mechanism of the iPhone, you can allow your users to set a 4-digit PIN for your own app. Then when starting your app’s personal data will only be available to the user.
It mimics the animations of the original for entering and confirming the PIN.
DTAboutViewController
This part simplifies dropping a standardized set of components you need to have a strong “About” section of your app.
You configure the things you like in a plist and add the view controller to your app. There is even an in-app-support section with FAQs and a scrollview with icons of all your apps, showing which apps are already installed.