Coupliqx transforms complex quantum photonics calculations into a seamless visual experience, empowering scientists and engineers to precisely evaluate the interaction between spin ensembles and photonic cavities. By integrating advanced quantum electrodynamics principles into a clean, touch-friendly interface, the app instantly computes collective coupling strength and cooperativity, revealing the coherence and efficiency of spin–photon systems in real time. Its refined dark gradient design, responsive scrolling layout, and one-tap share or copy options make research workflows faster and more intuitive. Whether you’re modeling solid-state emitters, exploring hybrid qubit–cavity systems, or teaching light–matter interaction physics, Coupliqx delivers clarity, precision, and elegance all in one compact iOS tool built for modern quantum research.