Franz, I am afraid that I have to disagree with you about the webapp running great on the iPad. I am a relatively new (and enthusiastic) Rachio user, and I just traveled out of the country for almost 3 weeks where I ONLY had access to my iPad and my iPhone. The webapp on the iPad does NOT function as it does on a Windows PC. I had screens where I wanted to edit something, and there is no way to close or save the screen (for example, can't edit a Flex watering schedule). Graphs can show up funny. Can't cut and paste the Water History (which I have been doing on the Windows PC so I can see what's really happening, and because numbers don't match up across different presentations of what should be the same data). At least moisture levels detail data shows up well on the webapp on the iPad, because when I try to look at it on the iPhone, I basically have to scroll through it one day at a time.
For now, I really like the premise of your product and the start of it, and I am willing to go through some growing pains as the company as a whole seems very responsive.
I am fine with using the app developed for the iPhone on the iPad. But I really need the webapp to work correctly on the iPad as I often do not have access to a Windows PC. (I am using Chrome BTW. I will do some checking to see if it acts the same on Safari. If I just need to change browsers, I am also willing to do that).