Yes! You can refer a friend and you'll both get a free month of internet once their service is installed!
You can find your referral link under the Options section on your account on the Starry App under Settings > Starry Account.
There is no limit to the number of people you can refer. One (1) month of free Starry Internet Service, will be applied to your account once a new user has their service installed after signing up with your referral link.