Before you jump to a conclusion based on incorrect information...

Before you jump to a conclusion based on incorrect information that you haven't fully researched or confirmed with the company, the app was only free as part of a targeted promotion in the city of Wisconsin which was voted the worst city in the US for asthma. Apple would not allow a targeted promotion so the app needs to be free only for the duration of the promotion. So, other than being based on completely incorrect information, you really know what you're talking about.