Not that I have a <i>burning</i> desire to sign into this app to save my selections, but please bear in mind, that for many people, signing in with Google is a non-option, either because they do not want to deal with Google, or do not want to trust your app with any connection to their Google account, which contains private data.<p>Ideally, every application should either be capable of standalone login, or at least offer a short variety of login providers.