Hello Geir,
maybe your satisfied and proud of your achievements at Runbox, but I’m not!
When I started my Runbox account some 4 years back, the Contacts and Calendar sync on Apple devices worked flawlessly. After launching the new Contacts and Calendar versions nothing is synced anymore and my 3 or 4 help tickets were forgotten eventually postponed.
As I understand, you received some grant to improve Runbox, I wonder that such situation is acceptable for donor?!
P.S. It is pure irony that after the Yahoo mail scandal I went to Runbox for more privacy and now as EU citizen to end again at an US entity where everything works!