I have the same questions about the online Premium. Can you use it if you have a mac, not a pc? I know with other programs it can make a difference. For example, I am a teacher and the grading program we have to use works better with Firefox than with Safari.
I find it odd that it seems no one at Fitday seems to read these forums or answer the emails I send. Maybe Fitday is on a budget, too, like everyone else.