HiEdu is an offline scientific calculator app designed to be the perfect replacement for handheld calculators, providing comprehensive support in solving various math problems, including arithmetic, algebra, trigonometry, calculus, statistics, complex, matrix, vector, and more, using an advanced AI-powered math solver. 

The PhET Desktop, Android, and iOS App contains all HTML5 and Java Simulations including their translations, for offline use on Windows and macOS, Android phone and tablet, as well as on iPhone and iPads.