It is a personal word tracking Dictionary app with standard phonetic of every existing word in the world. You can get the right pronunciation by just typing or searching it You can keep your learning growth . Just press plus button after learning it and the app will show you a graph in the basis of daily weekly and monthly. You can also give test of your learning growth after certain amount of words learned. And there are few default words for test before you learned at least 20 words.

playstore link https://play.google.com/store/apps/details?id=com.elias.wordbook