i learned so far from other resources: Its not actual a hunt! (which is a pity)
Because everybody does the hunting lost in its very own augmented reality.
So if you get the news about a monster popping up in your vicinity, track it down, and finally spot it on the corner of Elmstreet and Oakstreet, you and only you can see it.
And if it manages to escape down Elmstreet to the corner of Mainstreet it will not magical show up on the screen of a buddy from your hunting party who had established an observation post there.
well there are situations where those different augment realities influence each other.
if you place a "lure-in"-device that action get broadcast and is visible in all instances, but it only affects the general monster spawning frequency at that spot.
If Player A, B and C move to that spot, now for expample player A will see the monster type X on a parkbench and player B will see monster type Y near a trashcan nextby and player C might have to wait some time to see anything at all... but nobody sees the monsters spawned in the other players world. There is no competition or teamwork to hunt one
Ive also read now criminals can drop such a "lure in"-device in a remote and dangerous part of the city and know: some daring people with at least a newer brand of smartphone will show up soon and can be mugged.