This is really an incredible piece of work. Anyone who is using one of the “monthly subscription” alternatives needs to give it a try.
I bough a little 19" monitor from IT surplus at work for $25 just for the purpose of leaving the tracking map running. Seems only right to give whoever spent all this time an energy the same support. I don’t know why it’s free, but let’s keep it that way and use that “Donate” option!