I don't think there's one answer, but over all I believe better design (not necessarily just prettier graphics) has better chances of winning. When I launched m

I don't think there's one answer, but over all I believe better design (not necessarily just prettier graphics) has better chances of winning. When I launched my first iOS app, I did the MVP and paid no attention to the design. It was a niche product that solved a problem and with no competitor on the App Store it did well. But, when a competitor with a better designed app launched we started loosing sales to them. It took hiring a professional graphics designer for our app to restore the lead position in the market. Couple of lessons I learned: - Customers won't necessarily comment on the design - but they care about it very much. - Having sub-par design leaves a door wide open for a competitor. Of course, there are so many things that make a product successful and just having a great design by itself may not be enough, but it's one important piece of the puzzle.