Absolutely loving the app. One thing that’d be really cool to have is a way to read in portrait mode with the pages filling the entire screen width, and with multiple pages on the screen at once (With the ability to scroll down to each page with swipes). I feel like it’d make a great use of all the empty space in the current portrait mode on the iPhone X models.
Also one minor nitpick is not having a way to make the right to left reading mode the default.