What matters most is distribution and solving a problem that customers have. It can be an advantage in a crowded segment to have an extremely well polished app for differentiation purposes. But without distribution any app is going to die.
In your case, your app seems to be distributing mainly because you have a customer base from previous apps, which boosts your inherent distribution (pools are created by groups of friends which will talk about your app) and your search results in the app store. Also, from what I can see you are the only one that supports both Yahoo and ESPN, which is pretty cool :)
I released an app recently. First, a quick prototype with a stock UI, then a "beautiful", custom UI. Changes in downloads = 0. Still, I'm not saying it does not matter, because it clearly can, but it's very hard to pull it off. In your case, we can't really tell, unless you released a version with stock UI? Hard to prove that your UI affected sales without a test.
In your case, your app seems to be distributing mainly because you have a customer base from previous apps, which boosts your inherent distribution (pools are created by groups of friends which will talk about your app) and your search results in the app store. Also, from what I can see you are the only one that supports both Yahoo and ESPN, which is pretty cool :)
I released an app recently. First, a quick prototype with a stock UI, then a "beautiful", custom UI. Changes in downloads = 0. Still, I'm not saying it does not matter, because it clearly can, but it's very hard to pull it off. In your case, we can't really tell, unless you released a version with stock UI? Hard to prove that your UI affected sales without a test.
Congrats for your apps.