New User - Rachio and Tempest

Green lawn, did you have to pay to integrate Tempest usage with Rachio? Did you buy from Rachio (do they even sell Tempest anymore)?

Love clarity. The original thread on this topic is old. What is the current situation? If I buy tempest from manufacturer, will it easily without licensing or other costs integrate with Rachio, and is it meaningful in improving R’s water management? What is the current scoop? Rachio moderators, can you post update?

Thank you all!