Yeah, I have been sitting in the sun for an hour now, opened the app and realized its too late for D so didnt get anything. But the UX is terrible, most likely I will not use this app. But actually learned a useful thing, didnt know no vit d is generated after 5pm here
Discussion
IMVHO dminder has bad UX, Sun Day has good UX.
Having said that dminder tells you sun needs to have an angle > 30°
So it changes during the day and during the year
Quite useful to know this actually, I wasted time going waterfront, it was 10%. Next time I will check the app. Thanks for that post, I learned something new today!