Ever wanted to find a radiology app for a specific purpose? If so, you might want to check out the radiology app catalog on appcrawlr.
The nice thing about appcrawlr is that it allows you to refine your search by a number of criteria such as topic, audience, and features. Want to search for anatomy apps for students? Try it. Atlases with 3d images? That is also searchable! There are currently 32 apps listed in all.