One of the things that I didn’t like about Dark Sky (and the same now goes for Apple Weather) is that the radar used some sort of image smoothing, so the radar looks like smudges rather than sharply defined areas. What Carrot does lack compared with Dark Sky and Apple Weather is the projected radar for the next hour. Of course the projections aren’t always right, but they are somewhat useful to me.
I should also say that I used Dark Sky, mostly for the precipitation notifications, but generally found the the precipitation projections to be unreliable. About half the time that it projected rain starting it never came, or we had rain while Dark Sky said (and the radar showed) no precipitation in the area. Apple Weather has been a little better, and lately it’s been better than Carrot.
If Apple Weather ever fixes the weird radar anomalies I may stop my subscription to Carrot.