In your example, it seems the app was not mis-priced for you. In fact, it was the perfect price, until the company decided it was mis-priced for them.

So now they add all these unfriendly features, which now makes the app mis-priced for you.

My point is that mis-pricing can be different depending on who's perspective we look at. So in an economic sense, when we say something is mis-priced, from who's perspective is it?