I have not used this library, but I know that good libraries can make a big difference in how easy (or not) it is to build something.
If you’re developing in iOS, this covers multiple OSC versions, and clearly distinguishes between Level 1 (Theta v2.0) Method and Level 2 (Theta v2.1) Method. Even better, it includes a sample iOS app (requires Swift 3.0+ and Xcode 8.0+).
If anyone tries this out, please let me know. I’d like to hear any opinions.