ResultSys is a free Android application developed by TechMave Inc. It is an Education & Reference app that provides an efficient and convenient way to check national university results and calculate CGPA. With ResultSys, users can check their results offline, without the need for registration. Users can also receive notifications when results are published, search for their friends' results, and share their own results with a single click. Additionally, the app provides booklists, average positions, and improvements tracking. ResultSys also has a dark mode and avatar options for customization. In case users encounter any bugs or have suggestions, the app has an in-app feedback option for easy communication with the developer.

Overall, ResultSys is a useful app for students who want to keep track of their academic progress and stay updated with their NU results. With its offline capabilities and various features, it offers a smart solution for anyone who wants to conveniently calculate their CGPA and stay informed about their academic standing.