I love the questions, truly top notch and they work well with the Lippincotts Pharm book. However, I looked for a price for the in-app purchase before I downloaded it and I could not find it anywhere. Once I saw the questions I could tap the "get more questions" button to find out it is $36.99 for the set. Kinda pricey for your average med student... may have to eat lentils for another month to save for this app, otherwise, 5 stars!