What's a category of app where you still haven't found one you're happy with?

For me it's weather apps. I've tried a bunch and none of them feel right. Either too cluttered, too simple, weird notifications, or an interface that just doesn't make sense to me. I keep going back to the default one on my phone, which I don't even like. Not looking for recommendations specifically, just curious if anyone else has that one type of app they can't seem to solve.