I love using GoodNotes since it is so user friendly, however the only thing I find that is missing is the double page viewing option, so if I’m using a workbook, I can see both pages at once and flip through it like a normal tangible book. I know there is the option of opening a separate window but if I’m only using my iPhone, that isn’t possible. This would be an AMAZING feature and I think would honestly make a lot of people happy!!