Where is Find Friends on the Mac?

The Sparks family uses Find Friends all the time. With my kids off at events, jobs, and school, we often check up on each other. I like to think of it as a nerdy version of the Weasley family clock. We're not creepy. Really.

The one piece of this I don't understand though is why Apple hasn't found a way to put Find Friends on the Mac. (It's also not a part of iCloud.com.) I would guess this is an issue of engineering resources but now that we have Maps on the Mac, I hope Find Friends is not far behind.