Top!

This App fills the Gap of the original TED App. The translations are of very good quality and its easy to follow the Talk, even if you listen additionally the original (english) sound. The App is developed constantly and enriched with new features.

TEDiSUB would be perfect, if the bookmarks could be tagged or categorized.
Nevertheless:

Patrick Petry about TEDiSUB - Enjoy TED Talks with Subtitles, v3.1