Love the concept, purchases should show up in my library. I have to scroll in the store till I find them. Also the app crashes some time ps when loading a book. Maybe due to the new book format they are moving to. Fix these primer issues and could be a 5 star

First, there is no dedicated search field. Once you purchase a book you have to scroll through all the books to find the one you own. There is no filter for books you own and don't own. The app user experience is poor. Second, the font formatting and font color doesn't make it obvious to the eye which moves are a variation, viewable in the chess viewer, or a simple comment. Several times I tapped on the move notation and it was not viewable in the game viewer.

I have purchased a book in this app about a month ago. I was reading it on and off. I don’t know what they did but today I saw I was signed off and I am unable to sign in into their system with my credentials in order to read that book. I recommend to fire all developers and their managers who create such frustrating bugs and not even bothering to test this basic login functionality!

The content is fantastic but the fact that the app cannot keep track of your library of bought books is crazy. It makes it so hard to go back to the book I’m reading which is the main purpose of the reader. There are much better readers for chess books in the AppStore.