Here is a preview video for the 1.6.3 update of Texpad iOS. This is the same application, but with an entirely rewritten UI.

• Custom keyboard we have rewritten the keyboard from scratch with LaTeX in mind.
• New project UI choose and resume your projects on the beautiful new project switcher screen, then manage your files without leaving the project view.
• iOS 7 revisions Completely rewritten with iOS 7 in mind.
• Internal upgrades Many internal efficiency improvements and bug fixes.