This is great!
I mainly learned english by watching movies, reading books, etc. in english so your method makes perfect sense to me.
In fact, I think that it is essentially the best way to learn how to speak like a native (because the classical way of learning tends to yield overly formal results).
Just a couple notes:
1. When you tap on a word and immediately tap on another the two audio dictation (by the way, great feature) run at the same time.
2. You should implement a "Personal Goal" feature where people can set objectives for themselves (like how many articles to read in a week or how many words to learn etc.)
Will use for the next couple of weeks and share my feedback. But great stuff! :)
An innovative, smart and easy-to-use tool to improve learning a language. Suggested to those who are looking for a "fast" way to grow vocabulary