@Graygoose No, Threads does not have an open API and Meta/Facebook isn't the type of company that would want 3rd party developers to come in and build apps for their platform. We do hope they will connect with ActivityPub so we can follow and interact with threads accounts in the future.
@ivory Thank you for your kind words. The Ivory App is truly exceptional. I frequently discuss its merits whenever the topic of social media-related iPad IOS apps arises in various conversations.