I have been using this app for more than 6months. This is one of the best app for those who prepare for competitive examinations. The best this I like is we can post our doubts, you can upload materials and also download the materials which you want. Keeps you updated about general awareness, exam notifications, mock tests, daily quiz on all sections. They also provide some mock tests at free of cost. If you find some material that is useful, you can save it to your notes for further revision. One more thing I like is, you can view this app in normal mode or night mode. Easy to use, Interface is also good.
Finally I would say, a must have app for all competitors.