1. AlquickframeThis UIView category offers quick access to frame properties of every view
2. AlsystemutilitiesTHIS REPO IS NO LONGER MAINTAINED! Check https://github.com/andrealufino/Luminous. This library provides a list of 80 methods to get every kind of system information!
3. LuminousLuminous provides you a lot of information about the system and a lot of handy methods to quickly get useful data on the iOS platform.
4. DeviiceSwift library to easily check the current device and some more info about it.
5. TranslatioSuper lightweight library that helps you to localize strings, even directly in storyboards!