I think it has been five years since I first found this app and shared it with my son. At first there were a few free books and you could sample the titles and purchase a book for around $3. I still have the books we purchased and we still enjoy them but I have been constantly frustrated with this app. I have always found it difficult to navigate to find out grownup information (like, how much is a subscription and what does that include). Im pretty much done and will either purchase books individually or look for another app. I wish the upgrades and changes through the years didnt make me feel like the company was trying to squeeze me for my cash.