Matter

Matter is a read-later app for iPhone, iPad, and web, which its page says has earned three Apple "App of the Day" honors. Users can save articles, threads, and PDFs, and turn newsletters, blogs, and articles into audio playlists with a voice the page describes as hard to distinguish from a human. Other listed features include a browser extension, newsletter delivery through Gmail or a unique Matter email address, offline full-text search, tagging, and highlighting. The page also says the app was built by a small team of avid readers.