Here is the statement in full: As you might be able to notice from the statement, it seems that the reason why the app was pulled out from Apple App Store is likely due to child pornography. Prior to the release of this statement though, CNET’s Download.com already managed to find out the reason through independent sources. As this is an industry-wide problem, we work collaboratively with our industry peers and partners like NCMEC (National Cetner for Missing and Exploited Children) to actively monitor content uploaded to the platform. Every image uploaded to Tumblr is scanned against an industry database of known child sexual abuse material, and images that are detected never reach the platform. A routine audit discovered content on our platform that had not yet been included in the industry database. We immediately removed this content. Content safeguards are a challenging aspect of operating scaled platforms. We’re continuously assessing further steps we can take to improve and there is no higher priority for our team. Even though Tumblr might have removed the offending content, it is still not yet known until when the app will continue to be missing from the App Store. Of course, Tumblr is still pretty much accessible through its website. (Source: Download.com // Tumblr)
