get list of facebook users who are using specific application using FQL

Question

I am trying to fetch following case using FQL

If few users have authorized \"Application A\" then is it possible to know that currently how many users are using tha

Answer 1

You can't get total number of users who have installed application, but you can get daily, weekly and monthly users with simple query:

SELECT daily_active_users, weekly_active_users, monthly_active_users
  FROM application WHERE app_id = APPLICATION_ID

Note: this will work for any application (not just applications user connected to)