It's good practice to keep your network data model somewhat isolated anyway. For my projects, I'm creating a Core Data model to match the Parse object data mode

It's good practice to keep your network data model somewhat isolated anyway. For my projects, I'm creating a Core Data model to match the Parse object data model, and running everything off that, using the Parse objects to keep the CD up to date. That way, I have device-local copies of all app data, and if I need to change backends in the future I only need to replace the isolated Parse code.