This page is a partial summary of Frontline Systems' current terms and prices for our Solver SDK Products, and our dual-use Solver Engines. Our prices and terms are subject to change without notice.

The software license prices below are for single-user licenses, which are tied to one user (a human being) and allow use on multiple computers.  They apply to any purchase order specifying any of its own terms, different from our Standard Terms and Conditions.

If you want to allow multiple users to share a license or pool of licenses, where only one user can access a license at any given time, you may wish to consider a Multiple User License.

If you plan to (i) prepay via a credit card or US check AND (ii) explicitly accept all of our Standard Terms and Conditions as shown at and, please contact us.


Product Name

License Price

Solver SDK Comprehensive (32- or 64-bit)


Solver SDK Platform (32- or 64-bit)


Solver SDK Pro (32- or 64-bit)


Std. Large-Scale LP Solver Engine


Ext. Large-Scale LP Solver Engine


Ext. MOSEK Solver Engine - SOCP/NLP


Gurobi Solver Engine - LP/MIP Only


Gurobi Solver Engine - LP/QP/MIP


XPRESS Solver Engine - LP/MIP Only


XPRESS Solver Engine - LP/QP/MIP


Ext. Large-Scale GRG Solver Engine


Large-Scale SQP Solver Engine


KNITRO Solver Engine


OptQuest Solver Engine



  • Our Corporate PO prices are still based on our standard Software License and Limited Warranty, but they provide some flexibility to negotiate custom terms and conditions as part of the "basis of the bargain". Some terms and conditions will require a minimum order size and/or surcharges for our compliance costs.  See How We Negotiate Custom Terms and Conditions for further details.
  • These prices are in US Dollars. We strongly prefer to quote prices, issue invoices, and accept payments in the USD currency.

All products except the OptQuest Solver Engine are available in 32-bit and 64-bit Editions for Windows.  The 64-bit products work only on 64-bit Windows 11, Windows10 or Windows Server.

Solver SDK Pro, Solver SDK Platform and selected Solver Engines are  available for Windows only.

See Support/Upgrades: Summary Terms/Prices for further information.