Hi there  just wondering do I need to fly on vatsim  for  acars  to work or  can I just simply  just fly

No you can just fly! ACARS logs your progress regardless of what network you fly on

QuoteNo you can just fly! ACARS logs your progress regardless of what network you fly on

thx  for  that

It will ask you how you are flying your flight; offline, vatsim or ivao. But this is purely for logging purposes and has no effect on the logging process