Vocabulary.com is a full version iPhone program, that is part of the category'Education & Reference' , and created by Thinkmap Inc.
More about Vocabulary.com
Vocabulary.com is available for users with the operating system iOS 6.1 and following versions, and you can get it in English. Its current version is 1.0.1 and it has been updated on 02/08/2017. Since the software was added to our catalog in 2017, it has obtained 41 downloads, and last week it had 1 download. It's heavily used in United States."