Swift is loved by developers and is clearly the future of development in the Apple Ecosystem and maybe general purpose programming as it been Open-Sourced by Apple and developer all over the world actively contribute to it. Swift code is faster, more readable, seems natural and fun like a scripting language. Objective-C is very powerful and a large number of frameworks and many parts of the Apple Frameworks are written in Objective-C.
It is always a better option to start future proofing our Code and Frameworks by migrating to Swift.
SVProgressHUD is a very popular library widely used by developers. It is elegant in its simplicity to use and its clean minimalistic design.
The Swiftify Advanced Project Converter is a very powerful tool and converts the entire project to Swift. I used it to convert a project and the results were very good and quick but as I had studied the project code briefly I did not have an in-depth understanding of how the code was structured or how it functioned. I realized that it would be better to convert the project one class at a time, test the converted class and then keep on repeating the process.