Apple has always been very careful about what can be downloaded from its app store, and in turn, pulled an app this week amid concerns over its content.
Or more specifically, its ability to share content.
The app in question, 500px, allows users to upload and share photos; it is possible to view nude photos if one first disables a "safe search" feature.
Additionally, 500px says the nude photos in question are "artistic," and not pornographic. Just the same, it is unavailable on Apple at the present time.
A modified version has been submitted for review.
Apple's stance against porn has made headlines on the Internet for years, with apps for iPhones and iPads routinely rejected over these exact issues.