Questia doesnt care
Ive been a Questia subscriber for nearly 8 years and I love the service. However, the customer service for this app is beyond neglect. They just dont care. I complained about six weeks ago about the app crashing with OS4 on the iphone 3GS and I received a note equivalent to "our best people are working on it". No fixes as of today. If you read some of the other 1 star reviews youll see this has been a problem since OS4 was released.
I recommend looking at other service providers like Books24x7. They have an iphone app and it works. Subject area is different but maybe Questia will get the message. As of today I will be cancelling my membership to Questia.
EFD600 about
Questia Research