Your data, your book, your control

You own everything you create

• No claim on your book. We claim no rights to your manuscripts, drafts, interview answers, or anything else you make here.
• Take the manuscript anytime. Export to Word, EPUB, PDF, Markdown, or plain text whenever you want, finished or not.
• Take everything else too. A single tap exports a zip archive of your whole account — books, chapters, sections, and every interview answer — in open formats you can read without us.

Your words don't get overwritten

Every answer you give is saved the moment you give it and kept in version history. When a section is rewritten, the previous version is preserved first. Delete a chapter and your interview answers aren't destroyed — they're moved, labeled with where they came from, and re-attachable later.

Anything destructive stages first, waits for you to tap Confirm on screen, and ships with an Undo. Voice can start a deletion; only your finger finishes one.

Accounts and sign-in

• Sign in with Apple. No passwords stored and no email required — Apple's private relay means you never have to share your real address with us.
• Buy without an account. You can purchase Book Credits and start writing without signing in at all. Sign in later if you want your book on your other devices; your credits and purchase history come with you.
• Age verification. Ghostwriter uses Apple's Declared Age Range API to confirm you are 13 or older before AI features are available. We ask Apple for a range, not a birthday.

Where your book lives

• Encrypted in transit and at rest. Your book is encrypted on the way to our servers and while it sits there.
• US data centers. Your content is stored in the United States.
• Per-user access rules, enforced on the server, not just in the app. Nobody but you and the people you explicitly invite can read your book.
• Synced across your devices — iPhone, iPad, and Mac — through your Apple ID.

The specific infrastructure and processing providers we use are named in our Privacy Policy.

What leaves your device when you use AI

Writing your book means sending the material you are working on to AI providers for processing. We are specific about which material that is.

What leaves

The book material you are actively working on — your topic, your outline, your chapter briefs, your interview answers, your style settings, and any files you upload as context.

What never leaves

• Your Apple ID or email address
• Payment information
• Device identifiers
• Location data

Not used to train anyone's model

The AI providers we work with are used under API terms that do not permit your content to be used to train their models.

Your consent comes first

Before any AI feature is reachable, Ghostwriter shows you a consent screen that names every provider by name and describes exactly what each one receives. Nothing is sent until you agree, and you can withdraw consent at any time in Settings. Every provider is also listed in our Privacy Policy.

Leaving, and taking it all with you

• Export your data. Settings gives you a zip archive of everything you have created, any time, no request form and no waiting.
• Delete your account from inside the app. Type DELETE to confirm and we remove your account and every book, chapter, section, answer, and review that belongs to it. Uploaded files follow on a short cleanup schedule.
• No dark patterns. Deletion is in Settings, not behind an email to support.

Payments

All purchases are processed by Apple through the App Store. Ghostwriter never sees your payment card, billing address, or any financial information. Apple handles the entire transaction, and refunds follow Apple's policies.

What we don't collect

• No device identifiers or advertising IDs
• No location data
• No contacts, and no photos beyond what you explicitly upload as book material
• No browsing analytics or usage tracking — and this website sets no cookies

Full legal documents

For complete details, including every provider that processes your content:

• Privacy Policy — the full legal privacy policy for Ghostwriter.
• Terms of Service — the terms governing your use of the app.

Questions about our security or privacy practices? Contact us.