I am grateful for the openness of the Substack platform to make available so many different viewpoints on so many different subjects. Truly a fantastic resource and a great support for freedom of speech. HOWEVER, the user interface is quite non-intuitive, and I have not been able to find a list of my reading history, nor have I been able to return to articles currently being read if I temporarily leave the app in the background to search for a term on Google using Safari. Upon reopening the Substack app, I have completely lost the article I was reading, and without a reading history, only a miracle can bring it back. Also, new postings are displayed in a list as banners on the iPad login screen, but they just scroll on and on with older ones disappearing as soon as clicked on whether immediately read or not---not sure how such items are tracked (perhaps on the iPad side), but it would be nice to have that info available within the Substack app. There are other aggravations, such as no tutorial for using the app, but at the bare minimum, an explicit button or something to bring up the reading history would be wonderful.