Just to clarify F-Script is suitable only for debugging Mac apps. Super Debugger looks really cool for iOS.
Also, F-Script doesn't leverage lldb. The use of lldb in the example here was just that you can use lldb to attach to and load a library (bundle) into an arbitrary app process.
https://github.com/Shopify/superdb
It uses F-Script but, as I understand it, uses its own debugging environment rather than tying into lldb.