Goodreads is a website and app for readers who want to find, track and discuss books and receive book recommendations, as the service itself describes it. It is available on the web, as an iOS app and as an Android app, and users can sign in with an Amazon account. It is a consumer service rather than a business tool, and it is not open-source software.
Goodreads LLC is a subsidiary of Amazon.com, Inc. The privacy policy states that information collected by Goodreads is subject to Amazon's privacy notice and may be linked with personal information that Amazon holds. The contact address is in San Francisco, California. The policy does not say where data is stored or processed, and it contains no statement on international transfers. For a European organisation, the Amazon ownership means that the service is subject to US law and that data may be combined with the parent company's records.