Thought I'd share the news that Kenhub are now giving away their Flash cards via amazon or itunes. Great if you're studying med/dent/nursing/physio etc. There's a few MRI modules towards the end too which i thought was unique. You can access their content via their website but this is the first time I've known of the ebooks.
I don't have an apple product, but here's a search for amazon.com.au with the list of the books-
Haven't reviewed them all, so YMMV depending on what stage of your career/study you're at.
Not sure when the offer ends (or if it's always been free - camelx3 doesn't show a price history).