lpsolve is described as 'Mixed Integer Linear Programming (MILP) solver lp_solve solves pure linear, (mixed) integer/binary, semi-cont and special ordered sets (SOS) models' and is an app. There are four alternatives to lpsolve for Windows, Linux and Mac. The best lpsolve alternative is GNU Linear Programming Kit, which is both free and Open Source. Other great apps like lpsolve are GUSEK (GLPK Under Scite Extended Kit), LINDO and Linear Program Solver.
The GLPK (GNU Linear Programming Kit) package is intended for solving large-scale linear programming (LP), mixed integer programming (MIP), and other related problems.
GNU Linear Programming Kit is the most popular Windows, Mac & Linux alternative to lpsolve.
GNU Linear Programming Kit is the most popular Open Source & free alternative to lpsolve.
GUSEK provide an open source LP/MILP IDE for Win32, packing a custom version of the SciTE editor linked to the GLPK standalone solver.
Classic LINDO's simple interface and straightforward model expression style make it easy to learn and use. Classic LINDO is appropriate for building and solving moderately sized linear and integer models.
An optimization package oriented on solving linear, integer and goal programming problems.
