
Writing Tools are not available in Facebook on iOS, nor in any of Meta’s other apps.
It’s unlikely that Meta will ever reveal the reasons behind its decision — even if it’s happy to spill other firms’ confidential details — but it is now blocking the use of Writing Tools. It’s not clear when the change was made, but at time of writing, Writing Tools are unavailable across Facebook, Threads, Instagram, and WhatsApp.
Or at least they are on the iPhone and the iPad, although Instagram does not yet have a native iPadOS app. It’s still, of course, possible to use Apple Intelligence Writing Tools in a browser. Whether on the Mac, iPhone, or iPad, accessing Meta services online can’t prevent Apple Intelligence’s Writing Tools from being provided.