APBS is a software package for the numerical solution of the Poisson-Boltzmann equation, a popular continuum model for describing electrostatic interactions between molecular solutes over a wide range of length scales. <http://www.poissonboltzmann.org/>.
- molecular modeling
- implicit solvent models
- finite difference solver
- finite element solver
Excellent software for PB calculations.
Fantastic software, great science, excellent support via the mailing list, runs on OS X, Linux and Windows.
Really raised the bar!
nice and simple GUI, i like it a lot better.
And, it is free for us to use.
I have used this program for and it is great.