OPUS Online is one of the handy app for students to increase their knowledge. The school will be able to add curriculum and questions to the app which the students can take when they are free. These questions can be changed from time to time based on the level of students taking the test. This gives the students a great opportunity to face online exams. Through constant practice, students will be able to do better in their exams. All these depends on the commitment of the teachers posting the questions. Teachers can make it very useful to students as we know that most of the students posess tab or mobile device most of the time and this can be used in a useful manner.