HoloGradiant is an intuitive holography calculator that transforms complex optical geometry into quick, reliable results. Designed for students, researchers, and professionals in photonics, the app lets you input beam angles, recording wavelength, and optional medium thickness to instantly compute fringe spacing and reconstructed image angles. With its vibrant interface, built-in error checks, and concise physics notes, HoloGradiant makes it simple to explore interference patterns, design holographic setups, and validate experiments all in one streamlined tool.