VocaBoost is a Vocabulary Booster app which will help you in preparing the numerous GRE / SAT words as well as build a superior vocabulary in an efficient way.
Get the latest installation package of VocaBoost 2.1 free of charge and have a look at users' reviews on Droid Informer. The app is compatible with Android 4.0 and above. It's safe to download this application. Rushik Vartak is the developer of the tool which can be found in the Educational category.
VocaBoost has been downloaded and installed by over 10K users and the most recent release is dated Oct 13, 2015. Google Play shows that the app is rated 4.8 by its users. Advertisements are a part of this application.
As users state, the tool has such a plus as a good interface.