Vocab in Context lets you choose a French-language .txt file from which to make flashcards from the most-frequent X number of words, where you choose X and where it filters out stopwords. You are presented with a phrase with a blank where the French vocabulary should be, as well as the English translation of the sentence in order to intuit the meaning of the word. If you do not know the word, Vocab in Context reveals it to you and lets you practice it again, until all of the vocabulary has been learned.