Tumblr is a popular blogging platform that has lots of regular users, the platform allows its users to share video, photo and text easily. 

The platform is about to get better thanks to a new tweak by Andy wiik.

Tumblr + allows you to hold down on a video to download it and also gives an Instagram explorer type view by hiding the status bar when you scroll down. 

This tweak is free and available from repo.andrewwiik.me so if you use Tumblr check it out.