Watch one course, or your whole city. The moment a time frees up, you hear about it.
Every tee time carries its own forecast and its own price. Pick the round you actually want to play.
Every course near you in one place, with ratings, hours and how far it really is.
Send it once. Your friends and family get the same alerts you do, and when one of you grabs it, everybody else stops getting pinged about a time that is gone.