At Pelago, we embrace the open source camp. We put some of our own work out there, promote projects like Ubuntu, and we built Intervals using PHP and PostgreSQL.
In the large space of web-based project management software, Intervals is a fresh alternative to the proprietary behemoths who dominate task and time tracking with overly complex, or overly simple, offers.
You may not know this, but there are free and open source alternatives to most proprietary software programs. Here are 50 of free equivalents to everything from your Windows Operating System to Quickbooks Financial software.