Sharing options are somewhat hidden. I've been using goodnotes 5 on my iphone for school notes (I'm a game design college student so i take a lot of notes) and sharing on Iphone is easy and right where we would think it is. I used the Windows version and it feels hidden. it is in a tools list inside an extra menu where i would never think of going for sharing a file. i belive it would be better to have it in a sharing menu within a standard sharing icon on the top right corner of the UI. also am missing the ability to see the notebook file so i can send manually to my other devices or to someone else. other than that i am very happy to be a part of beta testing for if it is this smooth a functional now, i can't wait for the final app.