For the iOS app, you have to open one of your games to access the opening explorer.
Open a game in your archive.Go to Self Analysis mode.Tap on the first move.Tap on the button with a keyhole.
Also, where’s the page on openings? Or is that only on the website?
If Explorer isn’t on the iOS app, they should make adding it their top priority after the ability to post games, which I also haven’t found in app.
Great app, though.