Civil Service Exam Review Offline 2020 is a free Android-based reviewer for the Civil Service Exam. The program works offline and provides random questions every time it is launched, ensuring that users get a different set of questions every time they practice. The program covers all the subjects included in the Civil Service Examination, including English, Filipino, Clerical Operations, General Information, Analogy and Logic, and Numerical Reasoning.

The English subject covers vocabulary, grammar and correct usage, paragraph organization, and reading comprehension. The Filipino subject covers pagkilala sa mali, kasing-kahulugan, wastong gamit, kasalungat, and mga kawikaan. The Numerical Reasoning subject covers word problems and PEMDAS/MDAS, while the other subjects provide comprehensive coverage of their respective topics.

The program is dynamic and adds more than a hundred questions every day. Users can download the program for free and use it on their Android devices without internet access. However, it is important to note that this program is not affiliated with the Civil Service Commission.