A free app for Android, by Xeus.

Reading Comprehension and GRE Test Prep is a comprehensive app that is the best way to prepare for the GRE exam. With this app, you can learn the most important things you need to know in order to pass the exam, including vocabulary, grammar, idioms, phrasal verbs, math, and more.

The best part of this app is that you can study at your own pace and get the results you need. If you want to improve your score, you can take more than one test and review your performance. On top of that, you can review all of the important things you need to know and practice, as well as get personalized feedback about your strengths and weaknesses.

The app is a comprehensive guide that is perfect for GRE test prep and also works for a variety of other tests, including the SAT, IELTS, TOEFL, and GMAT.