Read & Learn Chinese - DuShu
You can read sentence by sentence, with a vocabulary list below the text, or Chinese text only with the vocabulary on a separate page. The vocabulary list shows only relevant vocab according to your skill level. Words you already know can be removed from the list, the app also keeps track of your known words and will not show known words in vocab lists again. Everything's highly configurable - which words are be shown in the vocab list, which tone color scheme (or none), pinyin always, never or for unknown characters only, text and pinyin size etc. can all be selected b the user. As it will adapt to your skill level, this Mandarin Chinese Reader can be useful for everybody from beginners to advanced learners. Texts in traditonal characters are automatically converted to simplified characters. Displaying traditional characters is currently not supported. In case you don't know what to read, Du Shu features extensive lists of sample sentences for all HSK-levels.