smartpost is post-processing software developed by Tridiagonal Solutions to visualize and analyze results from fluid simulation software like OpenFOAM and FLUENT. It has an intuitive interface that makes it easier to use than other visualization tools, and allows users to create cut planes, iso-surfaces, contours, vectors, and images/animations of simulation data. The software provides benefits like complete insight into simulations, a user-friendly workflow, and expert support from Tridiagonal Solutions.