The application offers 3 main features:
1 - Collocation of words, in sentence, supported by Oxford Collocation Dictionary that shows which words work together.
2 - Corpus, the common sentence of searching word, that you can easily find out how to use it in the real world.
3 - Learning how to pronounce correctly in TOEFL (American's voice), IELTS (British voice) or in Australia Pronunciation.
Besides that, with Corpus Collocation Dictionary, you can easily to visit linked words and explanations offered by original Oxford Collocation Dictionary.
Latest version is v.1.0.3
Updated at 2015 December 19th.