So, in this case, you can take a look on Organization > Monitor > Location analytics.   On overview page, you will see the cumulative amount of clients.     ... View more

I don't know the answer, but a quick look suggests to me your fear is correct - and that you will need to make a call per client.   I suggest you use asynchronous IO to speed the process up. ... View more

Depending on what I set resolution to, I get different usage's. The higher the resolution (300) the more usage, as compared to if I set it lower (3600).   I can't really wrap my head around what resolution changes, and how it affects usage. ... View more