StoryO works great with Final Draft. Here are some of the unique features between the two:
Import from Final Draft: If you just started your screenplay, but want to go back to outlining, import your existing screenplay into StoryO. Rearrange your thoughts and ideas, add more scenes and characters and use StoryO's unique timeline module to see your project from a top view.
Display Screenplay: Display the screenplay (the entire script or just the scene you are breaking down) right in StoryO including action and dialogue.
Add scenes: With action, characters and dialogue in StoryO.
Export to Final Draft: Write your outline in StoryO and then, when you're ready export to Final Draft and finish writing your screenplay in the industry's screenplay program.