Spring

My experience with third party libraries has been quite different, for the most part. I've often been surprised at how easy it is to create bindings to libraries written in Obj-C even if no one else has before. Usually it requires extracting the compiled library from the framework, and then translating each declaration from the library's header into the C# binding definition. In many cases it's a couple of hours work (or less). That said, libraries that are provided as source files, with the instructions "just copy them into your project," can be incredibly frustrating. Our designer would love to use github.com/MengTo/Spring but I have yet to find a way to use it in Xamarin easily.