R is an open source programming language and software environment for statistical computing and graphics that is supported by the R Foundation. Developed by Ross Ihaka and Robert Gentleman
License: Open Source
fxSolver is a specialized tool designed for financial modeling with a user-friendly interface, making it suitable for users with limited programming skills. In contrast, R is a versatile programming language widely used for statistical analysis and data visualization, offering a broader range of functionalities and flexibility, but requiring more technical knowledge.