Thanks for your questions CAMAROGRANA2!
1. Homekit will connect via Wi-Fi. Homekit will be available with the timers that have on the manual program button “A,B,C,D” instead of just “A,B,C”.
2. We are still working on certification.
3. It uses the weather stations that is based off the zip code.
4. Currently it goes off the chance of rainfall (30% or more). We are currently working on an update to be based off the chance and actual amount of rainfall.