Forecast by Facilita is mainly used for performance testing but functionally it is as strong as the other performance tools and the cost saving is usually at least 50% less.

Facilita Website http://www.facilita.com/

Facilita Software Test Tools

forecast - The Load and Performance Test Tool. A non-intrusive tool for system load testing, performance measurement and multi-user functional testing. Load test your enterprise infrastructure by simulating thousands of users performing realistic user actions.