Question: Can you recommend a book planning app that helps organize and structure my narrative?

If you're looking for a book planning app to organize and structure your writing, LivingWriter is well worth a look. It's got a clean interface with some high-level features like a drag-and-drop interface for arranging chapters, an AI Outline Generator, and smart text and auto-suggest features. With multi-device support and cloud storage, it'll keep your work in sync across all your devices.

Another good option is Story Path, which uses AI to help you construct a coherent story by suggesting plot developments, overcoming writer's block and organizing your narrative. It also has color-coding and sequence ordering tools to keep your story organized and can export finished work in PDF or Word documents.

If you want a full writing environment, check out Novelcrafter. The app includes a personal Wiki to store story details, multiple writing modes and AI tools to help you along the way. It's good for both planners and pantsers, with outlining tools, revision history and customizable tags and labels.

Last, Subtxt is designed to help you find gaps in your story and fill them with AI-boosted narrative structure and consistency. It's got tools like Narrative Agents, Subtxt Muse and Premise Builder to construct detailed narratives, so it's good for novelists, screenwriters and other fiction writers.