How can we help?

Write to hello@rex.re and a person will answer. Include the phone model and iOS version if something isn't working.

Common questions

How does the shelf scanning work?

Rex uses your iPhone's built-in text recognition to read the spines in the camera view. The words it reads are sent to our servers to be matched against our catalogue of books and authors. No photo or video leaves your phone.

The camera didn't recognise a book. Why?

Worn spines, unusual typefaces, very thin books and low light all make text harder to read. Move closer, hold the phone level with the shelf and let it settle for a moment. If a book is well lit and still never matches, tell us: it may be missing from the catalogue.

How do I sign in?

With your Apple or Google account. We never see your password, and with Sign in with Apple you can hide your email address from us.

How do I delete my account?

In the app, open your profile, then Settings, then Delete account. Your profile, shelves, ratings, reviews, lists and follows are deleted and your sign-in with Apple or Google is revoked. This cannot be undone.

Does Rex have ads or sell my data?

No, and no. Rex has no advertising, no third-party trackers, and we do not sell or share personal data for marketing. See the privacy policy for what we do hold.

Your data

You can ask us for a copy of the personal data we hold about you, ask us to correct it, or ask us to delete it, by writing to the address above from the email on your account. The privacy policy explains what we hold and for how long.