It doesn't collect your data or it isn't selling that data?
Another user on this very thread pointed out the specific trackers being used by the app. Unless that person is lying about them collecting the data, they will almost certainly be selling it.
That's the thing about data collection: its a lot of money to store. How are they funding the operation unless turning you into the product?
Let's hope you are right. I personally think an app of this nature should be fully open source.