ADANCO is a user-friendly software for variance-based structural equation modeling (SEM), particularly for composite-based models like Partial Least Squares-SEM (PLS-SEM) and confirmatory composite analysis (CCA). It is a free alternative to paid software and is used in social sciences to analyze relationships between latent variables. Its features include a graphical user interface, various estimation methods, and tools for analyzing direct, indirect, and total effects.