You're talking about two different things. You can download the Quartus Prime Programmer, which includes SignalTap, for free so you can program devices and debug them without a license. You can't do any design, though. The Quartus Prime Lite Edition is the actual Quartus software for creating FPGA designs, but it is missing some features of the Standard Edition and only supports MAX and Cyclone devices. The license options in Lite allow you to upgrade to Standard, I believe.