If you’ve been trying to install or reinstall Tumblr on your iPhone, you might not be able to for now. The Tumblr iOS app isn’t available from Apple’s App Store. Tumblr says it’s “working to resolve an issue with the iOS app” but it isn’t clear if Tumblr took it down or it was removed by Apple. Some users have reported they’ve been able to re-download the app by going through their purchases page but at the moment, Tumblr said they are “still working on the issue with the iOS app.”
Some speculate the app has been taken out because of a certain type of inappropriate content that appears on the site. And as stated in Apple’s guidelines for iOS, there needs to be a content filter to screen out adult-oriented content. Earlier in the week, users were reporting that they were having issues searching within the iOS app when Safe Mode was off. Perhaps the company is sorting this out right now. Apple and Tumblr hasn’t commented yet on the cause of this issue.
Source: The Verge