I can read the book but it’s pretty frustrating that I pay $50 and have so many typical ebook functions that don’t work. The zoom function is quite silly in the fact that you’re essentially zooming in on a pdf.. I could understand if this was a $5-10 add on in addition to the book I already bought but $50? Most importantly though is the fact that you have to log in every time you access the app… not WSET’s fault clearly the developers but the reason I got the ebook was for travel and if I’m on an airplane without wifi or a ferry boat without signal why can’t I access my ebook that has been downloaded on my phone? I get logging in once a month or once a week but give me a break once or sometimes more than once a day?? Very frustrating