When students need to calculate their semester CGPA, estimate exam attendance cutoffs, or convert their GPA into a percentage for job applications, they usually end up on legacy calculator sites that suffer from three huge problems: Intrusive Ads & Popups: Flooded with multi-layered display ads that shift the layout while typing. Tab-Throttling Bugs: Timers and countdowns that lose sync and lag whenever you switch browser tabs. Data Privacy Concerns: Passing grades and cour...