Mac App Store fails mostly because the restrictions on apps in it are too severe. Many applications can not exist on it due to sandboxing. This and the fact th

Mac App Store fails mostly because the restrictions on apps in it are too severe. Many applications can not exist on it due to sandboxing. This and the fact that the application itself is quite terrible. Edit: Also, for desktop apps the pricing model without paid upgrades is not viable. Compared to mobile, there are too few customers.