Love the books but here is what they don’t say directly: you pay per calendar month when you subscribe meaning that if you, like me, bought subscription on 9/30, you will be charged a full-month subscription per 1 day of September. If would have been ok if the had mentioned it somewhere but they didn’t. Now it seems they do it not only for monthly subscriptions but year plans too. I wonder about that trial week - make sure you sign up on Monday, the first of month or January 1. Very disappointed, will have to apologize to all me friends I recommended this app - a bunch of them installed it right away. Will be looking for an alternative.