YouTube Creator Studio is a handy app to manage and analyze your YouTube videos.
This well-designed, official app allows you to quickly view all of your videos and track their performance. You can change info and settings for your uploads, such as the title, privacy settings, category, comments settings, etc.
YouTube Creator also delivers easy-to-digest analytics for all your videos, and allows you to set notifications for video activity.
Its functions are limited, but it's useful nonetheless.