Open Settings from the book list's bottom bar, or with ⋯ › Settings in a book. On the phone each section is folded to one line; tap it to open.
- Language: the app is in 16 languages. Prompts and skill files sent to ChatGPT or Gemini stay in English, which gives the best drawings. Your book's own language is set per book.
- Appearance: Dark, Light, or System to follow your phone.
- License: your plan, days left, Check again, the purchase options and Payment history. See Your account, trial and plans.
- Book planning skills: which version of the planning skill to use for image books and layout books. Stay on the recommended version unless you want to test a beta.
- Backups: see Back up and move your books.
- API keys: your Google Gemini and OpenAI keys. Save, Test and Remove each one. Keys stay on this device.
- Image generation: where pictures come from: AI provider (with a key), or Promptline. With no key, pages are drawn by copying their prompts into your chat app. See Choose how your pages get drawn.
- Text: where planning and the assistant get their text: AI provider or Promptline.
- Reading imported artwork: with a key, Describe pages on import writes a prompt for each picture you import.
- ChatGPT: Open a temporary chat keeps book prompts out of your ChatGPT history. It's on by default on the phone.