Have you ever tried big wall boards? They may take up space but they work much more easily than any computer programme that I have used!
Stars is alright
but unless you have a (very) big screen you cannot see much in detail, particularly if you have a multi-crew ac!
Want to find a crew for a short notice task? First look at the Captain's page, then look up the co's page, then look up the nav's page, then look up............. On big wall boards one look and you can see who each section has available. Much easier!