I finally bought the Pro version of WH once again, but I am still struggling to sync my Google calendars (many of them from the same @gmail address) both in Android (phone) and Microsoft (Windows 10) and both in WH and Diarium. After having tried so many times (and spent around 50€ and a lot of time), I am sorry to say that calendar syncronization does not work (at least for an average, with no engineering competences user as I am). Yes, I know that it depends on the local calendar and so on..., but syncing the local calendars with Google ones seems impossible and I am always back to the starting point.