How do I save my books with an account?
Link Apple or Google so your books and scans aren't lost if you change phones.
When you first open Spines you're using it as a guest. Everything works, but your books and scans live only on that phone. Linking an account keeps them safe.
- Open More and tap Create Account.
- Tap Continue with Apple (iPhone only) or Continue with Google.
- Follow the Apple or Google sign-in steps.
You'll see Account created. Your data is preserved. Everything you'd saved as a guest stays exactly where it was.
Updated 27 September 2026