Yes you need windows or you'll have to run bootcamp or some kind of emulation software as well as buy widows...I did this for logbook pro and it slowed my computer big time. If you're senior there is really no need for easy bid. Even if you're junior you don't really need it either, but I get why people use it.

Easybid is head and shoulders above Navblu......

Ditto, but WHY? $$$$. For the cost of a diversion, we could have J Bell develop a great bidding program/app.