ExpressPCB doesn't have a reasonable line routing tool, the service is expensive just for some no-soldermask no-silkscreen boards, there is no ratsnest/airwire feature, it just highlights one net at a time by changing the color of the pins to be connected.
I tried to use ExpressPCB a few months ago to help someone with their layout. I struggled for about an hour to get three parts placed, then gave up and went back to Eagle. Redrew their entire schematic, created some new parts, and routed most of the PCB in the next hour.
A simple program can force you to do some very complicated things to make up for missing features. ExpressPCB would basically require you to draw your layout on paper before attempting actual routing.