Demo version of "504 Essential Words" application.
In this version only 3 first lessons exists. So please test it and if you like it buy the original version from here: http://p5x.co/9708

Learn 504 absolutely essential English words better. With reminding and repeating of the words with pronunciation and definition of words in each lesson, remember them forever.
The application has a widget that helps you to remind by showing the words periodically.
If a word is hard to learn for you just star it! It will add to the starred list in order to learn them later.
For pronunciation of the word press the speaker button. Make sure the voice of your device is open.
You can restrict the words showing in reminder widget to the lessons that you are learning by going to the settings page of application.